Home / 129,995.73-179,395.31-76,281.66

Finding the Fourth Proportional to 129,995.73, 179,395.31 and 76,281.66

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Solution

The fourth proportional to 129,995.73, 179,395.31 and 76,281.66 is: 105,269.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,995.73 : 179,395.31 = 76,281.66 : x
  2. Step 2: Convert to fraction form
    129,995.73/179,395.31 = 76,281.66/x
  3. Step 3: Cross multiply
    129,995.73x = 179,395.31 × 76,281.66
  4. Step 4: Simplify right side
    129,995.73x = 13,684,572,043.01
  5. Step 5: Solve for x
    x = 13,684,572,043.01/129,995.73
  6. Step 6: Final answer
    x = 105,269.40

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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.