Home / 156,799.08-216,374.54-85,178.88

Finding the Fourth Proportional to 156,799.08, 216,374.54 and 85,178.88

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Solution

The fourth proportional to 156,799.08, 216,374.54 and 85,178.88 is: 117,542.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,799.08 : 216,374.54 = 85,178.88 : x
  2. Step 2: Convert to fraction form
    156,799.08/216,374.54 = 85,178.88/x
  3. Step 3: Cross multiply
    156,799.08x = 216,374.54 × 85,178.88
  4. Step 4: Simplify right side
    156,799.08x = 18,430,540,551.82
  5. Step 5: Solve for x
    x = 18,430,540,551.82/156,799.08
  6. Step 6: Final answer
    x = 117,542.40

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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.