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Finding the Fourth Proportional to 89,435.30, 134,152.95 and 88,123.10

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Solution

The fourth proportional to 89,435.30, 134,152.95 and 88,123.10 is: 132,184.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,435.30 : 134,152.95 = 88,123.10 : x
  2. Step 2: Convert to fraction form
    89,435.30/134,152.95 = 88,123.10/x
  3. Step 3: Cross multiply
    89,435.30x = 134,152.95 × 88,123.10
  4. Step 4: Simplify right side
    89,435.30x = 11,821,973,828.15
  5. Step 5: Solve for x
    x = 11,821,973,828.15/89,435.30
  6. Step 6: Final answer
    x = 132,184.65

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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.