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Finding the Fourth Proportional to 119,900.31, 179,850.15 and 112,592.70

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Solution

The fourth proportional to 119,900.31, 179,850.15 and 112,592.70 is: 168,888.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,900.31 : 179,850.15 = 112,592.70 : x
  2. Step 2: Convert to fraction form
    119,900.31/179,850.15 = 112,592.70/x
  3. Step 3: Cross multiply
    119,900.31x = 179,850.15 × 112,592.70
  4. Step 4: Simplify right side
    119,900.31x = 20,249,813,983.91
  5. Step 5: Solve for x
    x = 20,249,813,983.91/119,900.31
  6. Step 6: Final answer
    x = 168,888.75

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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.