Home / 95,431.68-143,129.05-28,856.20

Finding the Fourth Proportional to 95,431.68, 143,129.05 and 28,856.20

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Solution

The fourth proportional to 95,431.68, 143,129.05 and 28,856.20 is: 43,278.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,431.68 : 143,129.05 = 28,856.20 : x
  2. Step 2: Convert to fraction form
    95,431.68/143,129.05 = 28,856.20/x
  3. Step 3: Cross multiply
    95,431.68x = 143,129.05 × 28,856.20
  4. Step 4: Simplify right side
    95,431.68x = 4,130,160,492.61
  5. Step 5: Solve for x
    x = 4,130,160,492.61/95,431.68
  6. Step 6: Final answer
    x = 43,278.72

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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.