Home / 145,215.52-200,373.90-90,761.27

Finding the Fourth Proportional to 145,215.52, 200,373.90 and 90,761.27

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Solution

The fourth proportional to 145,215.52, 200,373.90 and 90,761.27 is: 125,235.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,215.52 : 200,373.90 = 90,761.27 : x
  2. Step 2: Convert to fraction form
    145,215.52/200,373.90 = 90,761.27/x
  3. Step 3: Cross multiply
    145,215.52x = 200,373.90 × 90,761.27
  4. Step 4: Simplify right side
    145,215.52x = 18,186,188,636.98
  5. Step 5: Solve for x
    x = 18,186,188,636.98/145,215.52
  6. Step 6: Final answer
    x = 125,235.85

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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.