Home / 156,601.20-216,108.56-84,979.40

Finding the Fourth Proportional to 156,601.20, 216,108.56 and 84,979.40

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Solution

The fourth proportional to 156,601.20, 216,108.56 and 84,979.40 is: 117,270.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,601.20 : 216,108.56 = 84,979.40 : x
  2. Step 2: Convert to fraction form
    156,601.20/216,108.56 = 84,979.40/x
  3. Step 3: Cross multiply
    156,601.20x = 216,108.56 × 84,979.40
  4. Step 4: Simplify right side
    156,601.20x = 18,364,775,763.66
  5. Step 5: Solve for x
    x = 18,364,775,763.66/156,601.20
  6. Step 6: Final answer
    x = 117,270.98

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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.