Home / 113,531.20-170,314.80-38,658.40

Finding the Fourth Proportional to 113,531.20, 170,314.80 and 38,658.40

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Solution

The fourth proportional to 113,531.20, 170,314.80 and 38,658.40 is: 57,993.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,531.20 : 170,314.80 = 38,658.40 : x
  2. Step 2: Convert to fraction form
    113,531.20/170,314.80 = 38,658.40/x
  3. Step 3: Cross multiply
    113,531.20x = 170,314.80 × 38,658.40
  4. Step 4: Simplify right side
    113,531.20x = 6,584,097,664.32
  5. Step 5: Solve for x
    x = 6,584,097,664.32/113,531.20
  6. Step 6: Final answer
    x = 57,993.73

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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.