Home / 121,034.60-181,508.70-42,151.40

Finding the Fourth Proportional to 121,034.60, 181,508.70 and 42,151.40

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Solution

The fourth proportional to 121,034.60, 181,508.70 and 42,151.40 is: 63,212.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,034.60 : 181,508.70 = 42,151.40 : x
  2. Step 2: Convert to fraction form
    121,034.60/181,508.70 = 42,151.40/x
  3. Step 3: Cross multiply
    121,034.60x = 181,508.70 × 42,151.40
  4. Step 4: Simplify right side
    121,034.60x = 7,650,845,817.18
  5. Step 5: Solve for x
    x = 7,650,845,817.18/121,034.60
  6. Step 6: Final answer
    x = 63,212.06

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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.