Home / 121,044.06-181,566.90-42,158.03

Finding the Fourth Proportional to 121,044.06, 181,566.90 and 42,158.03

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Solution

The fourth proportional to 121,044.06, 181,566.90 and 42,158.03 is: 63,237.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,044.06 : 181,566.90 = 42,158.03 : x
  2. Step 2: Convert to fraction form
    121,044.06/181,566.90 = 42,158.03/x
  3. Step 3: Cross multiply
    121,044.06x = 181,566.90 × 42,158.03
  4. Step 4: Simplify right side
    121,044.06x = 7,654,501,909.37
  5. Step 5: Solve for x
    x = 7,654,501,909.37/121,044.06
  6. Step 6: Final answer
    x = 63,237.32

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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.