Home / 130,121.02-179,612.22-89,419.92

Finding the Fourth Proportional to 130,121.02, 179,612.22 and 89,419.92

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Solution

The fourth proportional to 130,121.02, 179,612.22 and 89,419.92 is: 123,430.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,121.02 : 179,612.22 = 89,419.92 : x
  2. Step 2: Convert to fraction form
    130,121.02/179,612.22 = 89,419.92/x
  3. Step 3: Cross multiply
    130,121.02x = 179,612.22 × 89,419.92
  4. Step 4: Simplify right side
    130,121.02x = 16,060,909,902.83
  5. Step 5: Solve for x
    x = 16,060,909,902.83/130,121.02
  6. Step 6: Final answer
    x = 123,430.56

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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.