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Finding the Fourth Proportional to 106,873.49, 147,488.17 and 64,434.75

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Solution

The fourth proportional to 106,873.49, 147,488.17 and 64,434.75 is: 88,921.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,873.49 : 147,488.17 = 64,434.75 : x
  2. Step 2: Convert to fraction form
    106,873.49/147,488.17 = 64,434.75/x
  3. Step 3: Cross multiply
    106,873.49x = 147,488.17 × 64,434.75
  4. Step 4: Simplify right side
    106,873.49x = 9,503,363,624.36
  5. Step 5: Solve for x
    x = 9,503,363,624.36/106,873.49
  6. Step 6: Final answer
    x = 88,921.62

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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.