Home / 120,011.04-165,616.62-66,294.93

Finding the Fourth Proportional to 120,011.04, 165,616.62 and 66,294.93

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Solution

The fourth proportional to 120,011.04, 165,616.62 and 66,294.93 is: 91,487.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,011.04 : 165,616.62 = 66,294.93 : x
  2. Step 2: Convert to fraction form
    120,011.04/165,616.62 = 66,294.93/x
  3. Step 3: Cross multiply
    120,011.04x = 165,616.62 × 66,294.93
  4. Step 4: Simplify right side
    120,011.04x = 10,979,542,229.74
  5. Step 5: Solve for x
    x = 10,979,542,229.74/120,011.04
  6. Step 6: Final answer
    x = 91,487.77

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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.