Home / 105,026.30-144,937.50-57,279.20

Finding the Fourth Proportional to 105,026.30, 144,937.50 and 57,279.20

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Solution

The fourth proportional to 105,026.30, 144,937.50 and 57,279.20 is: 79,045.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,026.30 : 144,937.50 = 57,279.20 : x
  2. Step 2: Convert to fraction form
    105,026.30/144,937.50 = 57,279.20/x
  3. Step 3: Cross multiply
    105,026.30x = 144,937.50 × 57,279.20
  4. Step 4: Simplify right side
    105,026.30x = 8,301,904,050
  5. Step 5: Solve for x
    x = 8,301,904,050/105,026.30
  6. Step 6: Final answer
    x = 79,045.95

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1.5x scale

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.