Home / 124,825.15-172,210.30-79,495.02

Finding the Fourth Proportional to 124,825.15, 172,210.30 and 79,495.02

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Solution

The fourth proportional to 124,825.15, 172,210.30 and 79,495.02 is: 109,672.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,825.15 : 172,210.30 = 79,495.02 : x
  2. Step 2: Convert to fraction form
    124,825.15/172,210.30 = 79,495.02/x
  3. Step 3: Cross multiply
    124,825.15x = 172,210.30 × 79,495.02
  4. Step 4: Simplify right side
    124,825.15x = 13,689,861,491.13
  5. Step 5: Solve for x
    x = 13,689,861,491.13/124,825.15
  6. Step 6: Final answer
    x = 109,672.30

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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.