Home / 113,046.90-169,570.35-86,883.70

Finding the Fourth Proportional to 113,046.90, 169,570.35 and 86,883.70

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Solution

The fourth proportional to 113,046.90, 169,570.35 and 86,883.70 is: 130,325.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,046.90 : 169,570.35 = 86,883.70 : x
  2. Step 2: Convert to fraction form
    113,046.90/169,570.35 = 86,883.70/x
  3. Step 3: Cross multiply
    113,046.90x = 169,570.35 × 86,883.70
  4. Step 4: Simplify right side
    113,046.90x = 14,732,899,418.30
  5. Step 5: Solve for x
    x = 14,732,899,418.30/113,046.90
  6. Step 6: Final answer
    x = 130,325.55

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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.