Home / 181,387.10-272,172.80-81,527.18

Finding the Fourth Proportional to 181,387.10, 272,172.80 and 81,527.18

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Solution

The fourth proportional to 181,387.10, 272,172.80 and 81,527.18 is: 122,332.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,387.10 : 272,172.80 = 81,527.18 : x
  2. Step 2: Convert to fraction form
    181,387.10/272,172.80 = 81,527.18/x
  3. Step 3: Cross multiply
    181,387.10x = 272,172.80 × 81,527.18
  4. Step 4: Simplify right side
    181,387.10x = 22,189,479,699.66
  5. Step 5: Solve for x
    x = 22,189,479,699.66/181,387.10
  6. Step 6: Final answer
    x = 122,332.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.