Home / 153,278.23-229,914.69-68,978.74

Finding the Fourth Proportional to 153,278.23, 229,914.69 and 68,978.74

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Solution

The fourth proportional to 153,278.23, 229,914.69 and 68,978.74 is: 103,466.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,278.23 : 229,914.69 = 68,978.74 : x
  2. Step 2: Convert to fraction form
    153,278.23/229,914.69 = 68,978.74/x
  3. Step 3: Cross multiply
    153,278.23x = 229,914.69 × 68,978.74
  4. Step 4: Simplify right side
    153,278.23x = 15,859,225,623.69
  5. Step 5: Solve for x
    x = 15,859,225,623.69/153,278.23
  6. Step 6: Final answer
    x = 103,466.92

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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.