Home / 172,068.18-237,412.54-100,407.30

Finding the Fourth Proportional to 172,068.18, 237,412.54 and 100,407.30

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Solution

The fourth proportional to 172,068.18, 237,412.54 and 100,407.30 is: 138,537.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,068.18 : 237,412.54 = 100,407.30 : x
  2. Step 2: Convert to fraction form
    172,068.18/237,412.54 = 100,407.30/x
  3. Step 3: Cross multiply
    172,068.18x = 237,412.54 × 100,407.30
  4. Step 4: Simplify right side
    172,068.18x = 23,837,950,689.46
  5. Step 5: Solve for x
    x = 23,837,950,689.46/172,068.18
  6. Step 6: Final answer
    x = 138,537.82

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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.