Home / 124,084.12-171,237.90-76,309.24

Finding the Fourth Proportional to 124,084.12, 171,237.90 and 76,309.24

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Solution

The fourth proportional to 124,084.12, 171,237.90 and 76,309.24 is: 105,307.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,084.12 : 171,237.90 = 76,309.24 : x
  2. Step 2: Convert to fraction form
    124,084.12/171,237.90 = 76,309.24/x
  3. Step 3: Cross multiply
    124,084.12x = 171,237.90 × 76,309.24
  4. Step 4: Simplify right side
    124,084.12x = 13,067,034,008.20
  5. Step 5: Solve for x
    x = 13,067,034,008.20/124,084.12
  6. Step 6: Final answer
    x = 105,307.87

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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.