Home / 121,001.52-181,554.24-42,072.72

Finding the Fourth Proportional to 121,001.52, 181,554.24 and 42,072.72

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Solution

The fourth proportional to 121,001.52, 181,554.24 and 42,072.72 is: 63,127.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,001.52 : 181,554.24 = 42,072.72 : x
  2. Step 2: Convert to fraction form
    121,001.52/181,554.24 = 42,072.72/x
  3. Step 3: Cross multiply
    121,001.52x = 181,554.24 × 42,072.72
  4. Step 4: Simplify right side
    121,001.52x = 7,638,480,704.33
  5. Step 5: Solve for x
    x = 7,638,480,704.33/121,001.52
  6. Step 6: Final answer
    x = 63,127.15

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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.