Home / 113,508.48-156,639.42-71,090.40

Finding the Fourth Proportional to 113,508.48, 156,639.42 and 71,090.40

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Solution

The fourth proportional to 113,508.48, 156,639.42 and 71,090.40 is: 98,103.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,508.48 : 156,639.42 = 71,090.40 : x
  2. Step 2: Convert to fraction form
    113,508.48/156,639.42 = 71,090.40/x
  3. Step 3: Cross multiply
    113,508.48x = 156,639.42 × 71,090.40
  4. Step 4: Simplify right side
    113,508.48x = 11,135,559,023.57
  5. Step 5: Solve for x
    x = 11,135,559,023.57/113,508.48
  6. Step 6: Final answer
    x = 98,103.32

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1.5x scale

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.