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Finding the Fourth Proportional to 124,285.76, 171,473.44 and 72,590.98

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Solution

The fourth proportional to 124,285.76, 171,473.44 and 72,590.98 is: 100,151.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,285.76 : 171,473.44 = 72,590.98 : x
  2. Step 2: Convert to fraction form
    124,285.76/171,473.44 = 72,590.98/x
  3. Step 3: Cross multiply
    124,285.76x = 171,473.44 × 72,590.98
  4. Step 4: Simplify right side
    124,285.76x = 12,447,425,053.57
  5. Step 5: Solve for x
    x = 12,447,425,053.57/124,285.76
  6. Step 6: Final answer
    x = 100,151.66

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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.