Home / 113,430.24-156,568.14-65,695.32

Finding the Fourth Proportional to 113,430.24, 156,568.14 and 65,695.32

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Solution

The fourth proportional to 113,430.24, 156,568.14 and 65,695.32 is: 90,679.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,430.24 : 156,568.14 = 65,695.32 : x
  2. Step 2: Convert to fraction form
    113,430.24/156,568.14 = 65,695.32/x
  3. Step 3: Cross multiply
    113,430.24x = 156,568.14 × 65,695.32
  4. Step 4: Simplify right side
    113,430.24x = 10,285,794,059.10
  5. Step 5: Solve for x
    x = 10,285,794,059.10/113,430.24
  6. Step 6: Final answer
    x = 90,679.47

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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.