Home / 181,428.35-272,048.76-81,503.10

Finding the Fourth Proportional to 181,428.35, 272,048.76 and 81,503.10

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Solution

The fourth proportional to 181,428.35, 272,048.76 and 81,503.10 is: 122,212.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,428.35 : 272,048.76 = 81,503.10 : x
  2. Step 2: Convert to fraction form
    181,428.35/272,048.76 = 81,503.10/x
  3. Step 3: Cross multiply
    181,428.35x = 272,048.76 × 81,503.10
  4. Step 4: Simplify right side
    181,428.35x = 22,172,817,291.16
  5. Step 5: Solve for x
    x = 22,172,817,291.16/181,428.35
  6. Step 6: Final answer
    x = 122,212.53

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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.