Home / 122,061.83-183,148.11-72,239.13

Finding the Fourth Proportional to 122,061.83, 183,148.11 and 72,239.13

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Solution

The fourth proportional to 122,061.83, 183,148.11 and 72,239.13 is: 108,391.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,061.83 : 183,148.11 = 72,239.13 : x
  2. Step 2: Convert to fraction form
    122,061.83/183,148.11 = 72,239.13/x
  3. Step 3: Cross multiply
    122,061.83x = 183,148.11 × 72,239.13
  4. Step 4: Simplify right side
    122,061.83x = 13,230,460,127.54
  5. Step 5: Solve for x
    x = 13,230,460,127.54/122,061.83
  6. Step 6: Final answer
    x = 108,391.47

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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.