Home / 156,217.24-215,578.08-88,234.32

Finding the Fourth Proportional to 156,217.24, 215,578.08 and 88,234.32

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Solution

The fourth proportional to 156,217.24, 215,578.08 and 88,234.32 is: 121,762.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,217.24 : 215,578.08 = 88,234.32 : x
  2. Step 2: Convert to fraction form
    156,217.24/215,578.08 = 88,234.32/x
  3. Step 3: Cross multiply
    156,217.24x = 215,578.08 × 88,234.32
  4. Step 4: Simplify right side
    156,217.24x = 19,021,385,295.71
  5. Step 5: Solve for x
    x = 19,021,385,295.71/156,217.24
  6. Step 6: Final answer
    x = 121,762.40

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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.