Home / 101,972.10-140,741.51-65,154.65

Finding the Fourth Proportional to 101,972.10, 140,741.51 and 65,154.65

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Solution

The fourth proportional to 101,972.10, 140,741.51 and 65,154.65 is: 89,926.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,972.10 : 140,741.51 = 65,154.65 : x
  2. Step 2: Convert to fraction form
    101,972.10/140,741.51 = 65,154.65/x
  3. Step 3: Cross multiply
    101,972.10x = 140,741.51 × 65,154.65
  4. Step 4: Simplify right side
    101,972.10x = 9,169,962,795.04
  5. Step 5: Solve for x
    x = 9,169,962,795.04/101,972.10
  6. Step 6: Final answer
    x = 89,926.19

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1.5x scale

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.