Home / 135,798.10-203,697.13-72,426.23

Finding the Fourth Proportional to 135,798.10, 203,697.13 and 72,426.23

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Solution

The fourth proportional to 135,798.10, 203,697.13 and 72,426.23 is: 108,639.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,798.10 : 203,697.13 = 72,426.23 : x
  2. Step 2: Convert to fraction form
    135,798.10/203,697.13 = 72,426.23/x
  3. Step 3: Cross multiply
    135,798.10x = 203,697.13 × 72,426.23
  4. Step 4: Simplify right side
    135,798.10x = 14,753,013,988.17
  5. Step 5: Solve for x
    x = 14,753,013,988.17/135,798.10
  6. Step 6: Final answer
    x = 108,639.33

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1.5x scale

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.