Home / 113,039.40-169,559.10-86,876.20

Finding the Fourth Proportional to 113,039.40, 169,559.10 and 86,876.20

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Solution

The fourth proportional to 113,039.40, 169,559.10 and 86,876.20 is: 130,314.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,039.40 : 169,559.10 = 86,876.20 : x
  2. Step 2: Convert to fraction form
    113,039.40/169,559.10 = 86,876.20/x
  3. Step 3: Cross multiply
    113,039.40x = 169,559.10 × 86,876.20
  4. Step 4: Simplify right side
    113,039.40x = 14,730,650,283.42
  5. Step 5: Solve for x
    x = 14,730,650,283.42/113,039.40
  6. Step 6: Final answer
    x = 130,314.30

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1.5x scale

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.