Home / 129,800.86-179,206.28-99,528.02

Finding the Fourth Proportional to 129,800.86, 179,206.28 and 99,528.02

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Solution

The fourth proportional to 129,800.86, 179,206.28 and 99,528.02 is: 137,410.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,800.86 : 179,206.28 = 99,528.02 : x
  2. Step 2: Convert to fraction form
    129,800.86/179,206.28 = 99,528.02/x
  3. Step 3: Cross multiply
    129,800.86x = 179,206.28 × 99,528.02
  4. Step 4: Simplify right side
    129,800.86x = 17,836,046,219.97
  5. Step 5: Solve for x
    x = 17,836,046,219.97/129,800.86
  6. Step 6: Final answer
    x = 137,410.85

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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.