Home / 124,085.12-171,239.28-76,310.24

Finding the Fourth Proportional to 124,085.12, 171,239.28 and 76,310.24

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Solution

The fourth proportional to 124,085.12, 171,239.28 and 76,310.24 is: 105,309.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,085.12 : 171,239.28 = 76,310.24 : x
  2. Step 2: Convert to fraction form
    124,085.12/171,239.28 = 76,310.24/x
  3. Step 3: Cross multiply
    124,085.12x = 171,239.28 × 76,310.24
  4. Step 4: Simplify right side
    124,085.12x = 13,067,310,554.23
  5. Step 5: Solve for x
    x = 13,067,310,554.23/124,085.12
  6. Step 6: Final answer
    x = 105,309.25

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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.