Home / 143,695.20-215,435.34-99,194.88

Finding the Fourth Proportional to 143,695.20, 215,435.34 and 99,194.88

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Solution

The fourth proportional to 143,695.20, 215,435.34 and 99,194.88 is: 148,718.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,695.20 : 215,435.34 = 99,194.88 : x
  2. Step 2: Convert to fraction form
    143,695.20/215,435.34 = 99,194.88/x
  3. Step 3: Cross multiply
    143,695.20x = 215,435.34 × 99,194.88
  4. Step 4: Simplify right side
    143,695.20x = 21,370,082,699.06
  5. Step 5: Solve for x
    x = 21,370,082,699.06/143,695.20
  6. Step 6: Final answer
    x = 148,718.14

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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.