Home / 129,996.99-179,397.03-76,282.90

Finding the Fourth Proportional to 129,996.99, 179,397.03 and 76,282.90

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Solution

The fourth proportional to 129,996.99, 179,397.03 and 76,282.90 is: 105,271.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,996.99 : 179,397.03 = 76,282.90 : x
  2. Step 2: Convert to fraction form
    129,996.99/179,397.03 = 76,282.90/x
  3. Step 3: Cross multiply
    129,996.99x = 179,397.03 × 76,282.90
  4. Step 4: Simplify right side
    129,996.99x = 13,684,925,699.79
  5. Step 5: Solve for x
    x = 13,684,925,699.79/129,996.99
  6. Step 6: Final answer
    x = 105,271.10

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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.