Home / 129,776.04-179,089.56-73,186.20

Finding the Fourth Proportional to 129,776.04, 179,089.56 and 73,186.20

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Solution

The fourth proportional to 129,776.04, 179,089.56 and 73,186.20 is: 100,996.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,776.04 : 179,089.56 = 73,186.20 : x
  2. Step 2: Convert to fraction form
    129,776.04/179,089.56 = 73,186.20/x
  3. Step 3: Cross multiply
    129,776.04x = 179,089.56 × 73,186.20
  4. Step 4: Simplify right side
    129,776.04x = 13,106,884,356.07
  5. Step 5: Solve for x
    x = 13,106,884,356.07/129,776.04
  6. Step 6: Final answer
    x = 100,996.18

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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.