Home / 156,256.72-215,574.78-115,518.70

Finding the Fourth Proportional to 156,256.72, 215,574.78 and 115,518.70

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Solution

The fourth proportional to 156,256.72, 215,574.78 and 115,518.70 is: 159,371.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,256.72 : 215,574.78 = 115,518.70 : x
  2. Step 2: Convert to fraction form
    156,256.72/215,574.78 = 115,518.70/x
  3. Step 3: Cross multiply
    156,256.72x = 215,574.78 × 115,518.70
  4. Step 4: Simplify right side
    156,256.72x = 24,902,918,338.39
  5. Step 5: Solve for x
    x = 24,902,918,338.39/156,256.72
  6. Step 6: Final answer
    x = 159,371.82

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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.