Home / 129,990.16-179,390.10-73,410.04

Finding the Fourth Proportional to 129,990.16, 179,390.10 and 73,410.04

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Solution

The fourth proportional to 129,990.16, 179,390.10 and 73,410.04 is: 101,307.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,990.16 : 179,390.10 = 73,410.04 : x
  2. Step 2: Convert to fraction form
    129,990.16/179,390.10 = 73,410.04/x
  3. Step 3: Cross multiply
    129,990.16x = 179,390.10 × 73,410.04
  4. Step 4: Simplify right side
    129,990.16x = 13,169,034,416.60
  5. Step 5: Solve for x
    x = 13,169,034,416.60/129,990.16
  6. Step 6: Final answer
    x = 101,307.93

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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.