Home / 120,468.02-166,250.16-72,712.04

Finding the Fourth Proportional to 120,468.02, 166,250.16 and 72,712.04

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Solution

The fourth proportional to 120,468.02, 166,250.16 and 72,712.04 is: 100,345.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,468.02 : 166,250.16 = 72,712.04 : x
  2. Step 2: Convert to fraction form
    120,468.02/166,250.16 = 72,712.04/x
  3. Step 3: Cross multiply
    120,468.02x = 166,250.16 × 72,712.04
  4. Step 4: Simplify right side
    120,468.02x = 12,088,388,283.93
  5. Step 5: Solve for x
    x = 12,088,388,283.93/120,468.02
  6. Step 6: Final answer
    x = 100,345.21

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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.