Home / 156,143.96-215,479.38-84,524.02

Finding the Fourth Proportional to 156,143.96, 215,479.38 and 84,524.02

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Solution

The fourth proportional to 156,143.96, 215,479.38 and 84,524.02 is: 116,643.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,143.96 : 215,479.38 = 84,524.02 : x
  2. Step 2: Convert to fraction form
    156,143.96/215,479.38 = 84,524.02/x
  3. Step 3: Cross multiply
    156,143.96x = 215,479.38 × 84,524.02
  4. Step 4: Simplify right side
    156,143.96x = 18,213,183,424.71
  5. Step 5: Solve for x
    x = 18,213,183,424.71/156,143.96
  6. Step 6: Final answer
    x = 116,643.53

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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.