Home / 156,313.30-215,697.80-88,335.48

Finding the Fourth Proportional to 156,313.30, 215,697.80 and 88,335.48

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Solution

The fourth proportional to 156,313.30, 215,697.80 and 88,335.48 is: 121,894.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,313.30 : 215,697.80 = 88,335.48 : x
  2. Step 2: Convert to fraction form
    156,313.30/215,697.80 = 88,335.48/x
  3. Step 3: Cross multiply
    156,313.30x = 215,697.80 × 88,335.48
  4. Step 4: Simplify right side
    156,313.30x = 19,053,768,697.94
  5. Step 5: Solve for x
    x = 19,053,768,697.94/156,313.30
  6. Step 6: Final answer
    x = 121,894.74

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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.