Home / 147,431.27-203,448.71-90,166.70

Finding the Fourth Proportional to 147,431.27, 203,448.71 and 90,166.70

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Solution

The fourth proportional to 147,431.27, 203,448.71 and 90,166.70 is: 124,426.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,431.27 : 203,448.71 = 90,166.70 : x
  2. Step 2: Convert to fraction form
    147,431.27/203,448.71 = 90,166.70/x
  3. Step 3: Cross multiply
    147,431.27x = 203,448.71 × 90,166.70
  4. Step 4: Simplify right side
    147,431.27x = 18,344,299,534.00
  5. Step 5: Solve for x
    x = 18,344,299,534.00/147,431.27
  6. Step 6: Final answer
    x = 124,426.11

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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.