Home / 101,543.32-140,160.16-65,735.75

Finding the Fourth Proportional to 101,543.32, 140,160.16 and 65,735.75

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Solution

The fourth proportional to 101,543.32, 140,160.16 and 65,735.75 is: 90,735.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,543.32 : 140,160.16 = 65,735.75 : x
  2. Step 2: Convert to fraction form
    101,543.32/140,160.16 = 65,735.75/x
  3. Step 3: Cross multiply
    101,543.32x = 140,160.16 × 65,735.75
  4. Step 4: Simplify right side
    101,543.32x = 9,213,533,577.85
  5. Step 5: Solve for x
    x = 9,213,533,577.85/101,543.32
  6. Step 6: Final answer
    x = 90,735.00

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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.