Home / 143,587.28-215,473.08-69,674.96

Finding the Fourth Proportional to 143,587.28, 215,473.08 and 69,674.96

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Solution

The fourth proportional to 143,587.28, 215,473.08 and 69,674.96 is: 104,557.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,587.28 : 215,473.08 = 69,674.96 : x
  2. Step 2: Convert to fraction form
    143,587.28/215,473.08 = 69,674.96/x
  3. Step 3: Cross multiply
    143,587.28x = 215,473.08 × 69,674.96
  4. Step 4: Simplify right side
    143,587.28x = 15,013,078,230.08
  5. Step 5: Solve for x
    x = 15,013,078,230.08/143,587.28
  6. Step 6: Final answer
    x = 104,557.16

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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.