Home / 121,963.16-182,839.59-47,135.81

Finding the Fourth Proportional to 121,963.16, 182,839.59 and 47,135.81

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Solution

The fourth proportional to 121,963.16, 182,839.59 and 47,135.81 is: 70,663.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,963.16 : 182,839.59 = 47,135.81 : x
  2. Step 2: Convert to fraction form
    121,963.16/182,839.59 = 47,135.81/x
  3. Step 3: Cross multiply
    121,963.16x = 182,839.59 × 47,135.81
  4. Step 4: Simplify right side
    121,963.16x = 8,618,292,174.72
  5. Step 5: Solve for x
    x = 8,618,292,174.72/121,963.16
  6. Step 6: Final answer
    x = 70,663.08

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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.