Home / 122,543.14-169,152.98-74,147.56

Finding the Fourth Proportional to 122,543.14, 169,152.98 and 74,147.56

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Solution

The fourth proportional to 122,543.14, 169,152.98 and 74,147.56 is: 102,349.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,543.14 : 169,152.98 = 74,147.56 : x
  2. Step 2: Convert to fraction form
    122,543.14/169,152.98 = 74,147.56/x
  3. Step 3: Cross multiply
    122,543.14x = 169,152.98 × 74,147.56
  4. Step 4: Simplify right side
    122,543.14x = 12,542,280,733.73
  5. Step 5: Solve for x
    x = 12,542,280,733.73/122,543.14
  6. Step 6: Final answer
    x = 102,349.92

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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.