Home / 142,325.80-196,318.86-108,259.53

Finding the Fourth Proportional to 142,325.80, 196,318.86 and 108,259.53

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Solution

The fourth proportional to 142,325.80, 196,318.86 and 108,259.53 is: 149,329.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,325.80 : 196,318.86 = 108,259.53 : x
  2. Step 2: Convert to fraction form
    142,325.80/196,318.86 = 108,259.53/x
  3. Step 3: Cross multiply
    142,325.80x = 196,318.86 × 108,259.53
  4. Step 4: Simplify right side
    142,325.80x = 21,253,387,513.74
  5. Step 5: Solve for x
    x = 21,253,387,513.74/142,325.80
  6. Step 6: Final answer
    x = 149,329.13

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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.