Home / 156,643.08-216,164.02-85,023.24

Finding the Fourth Proportional to 156,643.08, 216,164.02 and 85,023.24

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Solution

The fourth proportional to 156,643.08, 216,164.02 and 85,023.24 is: 117,330.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,643.08 : 216,164.02 = 85,023.24 : x
  2. Step 2: Convert to fraction form
    156,643.08/216,164.02 = 85,023.24/x
  3. Step 3: Cross multiply
    156,643.08x = 216,164.02 × 85,023.24
  4. Step 4: Simplify right side
    156,643.08x = 18,378,965,351.82
  5. Step 5: Solve for x
    x = 18,378,965,351.82/156,643.08
  6. Step 6: Final answer
    x = 117,330.21

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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.