Home / 121,214.95-181,851.05-38,108.95

Finding the Fourth Proportional to 121,214.95, 181,851.05 and 38,108.95

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Solution

The fourth proportional to 121,214.95, 181,851.05 and 38,108.95 is: 57,172.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,214.95 : 181,851.05 = 38,108.95 : x
  2. Step 2: Convert to fraction form
    121,214.95/181,851.05 = 38,108.95/x
  3. Step 3: Cross multiply
    121,214.95x = 181,851.05 × 38,108.95
  4. Step 4: Simplify right side
    121,214.95x = 6,930,153,026.53
  5. Step 5: Solve for x
    x = 6,930,153,026.53/121,214.95
  6. Step 6: Final answer
    x = 57,172.43

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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.