Home / 101,511.72-152,282.16-31,397.04

Finding the Fourth Proportional to 101,511.72, 152,282.16 and 31,397.04

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Solution

The fourth proportional to 101,511.72, 152,282.16 and 31,397.04 is: 47,100.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,511.72 : 152,282.16 = 31,397.04 : x
  2. Step 2: Convert to fraction form
    101,511.72/152,282.16 = 31,397.04/x
  3. Step 3: Cross multiply
    101,511.72x = 152,282.16 × 31,397.04
  4. Step 4: Simplify right side
    101,511.72x = 4,781,209,068.81
  5. Step 5: Solve for x
    x = 4,781,209,068.81/101,511.72
  6. Step 6: Final answer
    x = 47,100.07

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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.