Home / 115,347.51-172,960.92-52,113.24

Finding the Fourth Proportional to 115,347.51, 172,960.92 and 52,113.24

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Solution

The fourth proportional to 115,347.51, 172,960.92 and 52,113.24 is: 78,142.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,347.51 : 172,960.92 = 52,113.24 : x
  2. Step 2: Convert to fraction form
    115,347.51/172,960.92 = 52,113.24/x
  3. Step 3: Cross multiply
    115,347.51x = 172,960.92 × 52,113.24
  4. Step 4: Simplify right side
    115,347.51x = 9,013,553,934.58
  5. Step 5: Solve for x
    x = 9,013,553,934.58/115,347.51
  6. Step 6: Final answer
    x = 78,142.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.