Home / 137,747.93-190,068.12-77,321.12

Finding the Fourth Proportional to 137,747.93, 190,068.12 and 77,321.12

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Solution

The fourth proportional to 137,747.93, 190,068.12 and 77,321.12 is: 106,689.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,747.93 : 190,068.12 = 77,321.12 : x
  2. Step 2: Convert to fraction form
    137,747.93/190,068.12 = 77,321.12/x
  3. Step 3: Cross multiply
    137,747.93x = 190,068.12 × 77,321.12
  4. Step 4: Simplify right side
    137,747.93x = 14,696,278,964.35
  5. Step 5: Solve for x
    x = 14,696,278,964.35/137,747.93
  6. Step 6: Final answer
    x = 106,689.66

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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.