Home / 121,306.67-181,977.01-42,402.95

Finding the Fourth Proportional to 121,306.67, 181,977.01 and 42,402.95

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Solution

The fourth proportional to 121,306.67, 181,977.01 and 42,402.95 is: 63,610.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,306.67 : 181,977.01 = 42,402.95 : x
  2. Step 2: Convert to fraction form
    121,306.67/181,977.01 = 42,402.95/x
  3. Step 3: Cross multiply
    121,306.67x = 181,977.01 × 42,402.95
  4. Step 4: Simplify right side
    121,306.67x = 7,716,362,056.18
  5. Step 5: Solve for x
    x = 7,716,362,056.18/121,306.67
  6. Step 6: Final answer
    x = 63,610.37

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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.