Home / 113,963.09-157,278.54-62,985.78

Finding the Fourth Proportional to 113,963.09, 157,278.54 and 62,985.78

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Solution

The fourth proportional to 113,963.09, 157,278.54 and 62,985.78 is: 86,925.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,963.09 : 157,278.54 = 62,985.78 : x
  2. Step 2: Convert to fraction form
    113,963.09/157,278.54 = 62,985.78/x
  3. Step 3: Cross multiply
    113,963.09x = 157,278.54 × 62,985.78
  4. Step 4: Simplify right side
    113,963.09x = 9,906,311,519.16
  5. Step 5: Solve for x
    x = 9,906,311,519.16/113,963.09
  6. Step 6: Final answer
    x = 86,925.61

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.