Home / 113,218.12-156,228.60-65,464.24

Finding the Fourth Proportional to 113,218.12, 156,228.60 and 65,464.24

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Solution

The fourth proportional to 113,218.12, 156,228.60 and 65,464.24 is: 90,333.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,218.12 : 156,228.60 = 65,464.24 : x
  2. Step 2: Convert to fraction form
    113,218.12/156,228.60 = 65,464.24/x
  3. Step 3: Cross multiply
    113,218.12x = 156,228.60 × 65,464.24
  4. Step 4: Simplify right side
    113,218.12x = 10,227,386,565.26
  5. Step 5: Solve for x
    x = 10,227,386,565.26/113,218.12
  6. Step 6: Final answer
    x = 90,333.48

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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.