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Finding the Fourth Proportional to 88,875.60, 133,313.40 and 81,002.40

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Solution

The fourth proportional to 88,875.60, 133,313.40 and 81,002.40 is: 121,503.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,875.60 : 133,313.40 = 81,002.40 : x
  2. Step 2: Convert to fraction form
    88,875.60/133,313.40 = 81,002.40/x
  3. Step 3: Cross multiply
    88,875.60x = 133,313.40 × 81,002.40
  4. Step 4: Simplify right side
    88,875.60x = 10,798,705,352.16
  5. Step 5: Solve for x
    x = 10,798,705,352.16/88,875.60
  6. Step 6: Final answer
    x = 121,503.60

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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.