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Finding the Fourth Proportional to 88,712.10, 133,068.15 and 87,254.10

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Solution

The fourth proportional to 88,712.10, 133,068.15 and 87,254.10 is: 130,881.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,712.10 : 133,068.15 = 87,254.10 : x
  2. Step 2: Convert to fraction form
    88,712.10/133,068.15 = 87,254.10/x
  3. Step 3: Cross multiply
    88,712.10x = 133,068.15 × 87,254.10
  4. Step 4: Simplify right side
    88,712.10x = 11,610,741,666.92
  5. Step 5: Solve for x
    x = 11,610,741,666.92/88,712.10
  6. Step 6: Final answer
    x = 130,881.15

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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.