Home / 129,941.45-179,322.15-76,265.18

Finding the Fourth Proportional to 129,941.45, 179,322.15 and 76,265.18

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Solution

The fourth proportional to 129,941.45, 179,322.15 and 76,265.18 is: 105,247.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,941.45 : 179,322.15 = 76,265.18 : x
  2. Step 2: Convert to fraction form
    129,941.45/179,322.15 = 76,265.18/x
  3. Step 3: Cross multiply
    129,941.45x = 179,322.15 × 76,265.18
  4. Step 4: Simplify right side
    129,941.45x = 13,676,036,047.74
  5. Step 5: Solve for x
    x = 13,676,036,047.74/129,941.45
  6. Step 6: Final answer
    x = 105,247.68

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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.