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Finding the Fourth Proportional to 84,657.60, 127,025.28 and 83,257.92

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Solution

The fourth proportional to 84,657.60, 127,025.28 and 83,257.92 is: 124,925.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,657.60 : 127,025.28 = 83,257.92 : x
  2. Step 2: Convert to fraction form
    84,657.60/127,025.28 = 83,257.92/x
  3. Step 3: Cross multiply
    84,657.60x = 127,025.28 × 83,257.92
  4. Step 4: Simplify right side
    84,657.60x = 10,575,860,600.22
  5. Step 5: Solve for x
    x = 10,575,860,600.22/84,657.60
  6. Step 6: Final answer
    x = 124,925.12

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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.