Home / 124,677.25-172,111.24-79,417.28

Finding the Fourth Proportional to 124,677.25, 172,111.24 and 79,417.28

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Solution

The fourth proportional to 124,677.25, 172,111.24 and 79,417.28 is: 109,631.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,677.25 : 172,111.24 = 79,417.28 : x
  2. Step 2: Convert to fraction form
    124,677.25/172,111.24 = 79,417.28/x
  3. Step 3: Cross multiply
    124,677.25x = 172,111.24 × 79,417.28
  4. Step 4: Simplify right side
    124,677.25x = 13,668,606,538.23
  5. Step 5: Solve for x
    x = 13,668,606,538.23/124,677.25
  6. Step 6: Final answer
    x = 109,631.92

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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.