Home / 120,248.82-180,200.70-67,547.39

Finding the Fourth Proportional to 120,248.82, 180,200.70 and 67,547.39

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Solution

The fourth proportional to 120,248.82, 180,200.70 and 67,547.39 is: 101,224.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,248.82 : 180,200.70 = 67,547.39 : x
  2. Step 2: Convert to fraction form
    120,248.82/180,200.70 = 67,547.39/x
  3. Step 3: Cross multiply
    120,248.82x = 180,200.70 × 67,547.39
  4. Step 4: Simplify right side
    120,248.82x = 12,172,086,060.17
  5. Step 5: Solve for x
    x = 12,172,086,060.17/120,248.82
  6. Step 6: Final answer
    x = 101,224.16

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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.