Home / 120,206.33-165,832.61-72,432.53

Finding the Fourth Proportional to 120,206.33, 165,832.61 and 72,432.53

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Solution

The fourth proportional to 120,206.33, 165,832.61 and 72,432.53 is: 99,925.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,206.33 : 165,832.61 = 72,432.53 : x
  2. Step 2: Convert to fraction form
    120,206.33/165,832.61 = 72,432.53/x
  3. Step 3: Cross multiply
    120,206.33x = 165,832.61 × 72,432.53
  4. Step 4: Simplify right side
    120,206.33x = 12,011,674,307.48
  5. Step 5: Solve for x
    x = 12,011,674,307.48/120,206.33
  6. Step 6: Final answer
    x = 99,925.48

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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.