Home / 105,250.59-145,198.53-64,966.05

Finding the Fourth Proportional to 105,250.59, 145,198.53 and 64,966.05

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Solution

The fourth proportional to 105,250.59, 145,198.53 and 64,966.05 is: 89,623.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,250.59 : 145,198.53 = 64,966.05 : x
  2. Step 2: Convert to fraction form
    105,250.59/145,198.53 = 64,966.05/x
  3. Step 3: Cross multiply
    105,250.59x = 145,198.53 × 64,966.05
  4. Step 4: Simplify right side
    105,250.59x = 9,432,974,959.91
  5. Step 5: Solve for x
    x = 9,432,974,959.91/105,250.59
  6. Step 6: Final answer
    x = 89,623.96

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.