Home / 92,159.90-138,246.07-31,345.39

Finding the Fourth Proportional to 92,159.90, 138,246.07 and 31,345.39

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Solution

The fourth proportional to 92,159.90, 138,246.07 and 31,345.39 is: 47,020.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,159.90 : 138,246.07 = 31,345.39 : x
  2. Step 2: Convert to fraction form
    92,159.90/138,246.07 = 31,345.39/x
  3. Step 3: Cross multiply
    92,159.90x = 138,246.07 × 31,345.39
  4. Step 4: Simplify right side
    92,159.90x = 4,333,376,980.12
  5. Step 5: Solve for x
    x = 4,333,376,980.12/92,159.90
  6. Step 6: Final answer
    x = 47,020.20

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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.