Home / 105,870,278.60-158,805,417.90-78,996,422.60

Finding the Fourth Proportional to 105,870,278.60, 158,805,417.90 and 78,996,422.60

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Solution

The fourth proportional to 105,870,278.60, 158,805,417.90 and 78,996,422.60 is: 118,494,633.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,870,278.60 : 158,805,417.90 = 78,996,422.60 : x
  2. Step 2: Convert to fraction form
    105,870,278.60/158,805,417.90 = 78,996,422.60/x
  3. Step 3: Cross multiply
    105,870,278.60x = 158,805,417.90 × 78,996,422.60
  4. Step 4: Simplify right side
    105,870,278.60x = 12,545,059,903,598,004
  5. Step 5: Solve for x
    x = 12,545,059,903,598,004/105,870,278.60
  6. Step 6: Final answer
    x = 118,494,633.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.