Home / 95,430.30-143,145.45-90,618.90

Finding the Fourth Proportional to 95,430.30, 143,145.45 and 90,618.90

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Solution

The fourth proportional to 95,430.30, 143,145.45 and 90,618.90 is: 135,928.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,430.30 : 143,145.45 = 90,618.90 : x
  2. Step 2: Convert to fraction form
    95,430.30/143,145.45 = 90,618.90/x
  3. Step 3: Cross multiply
    95,430.30x = 143,145.45 × 90,618.90
  4. Step 4: Simplify right side
    95,430.30x = 12,971,683,219.01
  5. Step 5: Solve for x
    x = 12,971,683,219.01/95,430.30
  6. Step 6: Final answer
    x = 135,928.35

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Similar ratio
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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.