Home / 142,156.22-196,187.13-81,746.42

Finding the Fourth Proportional to 142,156.22, 196,187.13 and 81,746.42

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Solution

The fourth proportional to 142,156.22, 196,187.13 and 81,746.42 is: 112,816.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,156.22 : 196,187.13 = 81,746.42 : x
  2. Step 2: Convert to fraction form
    142,156.22/196,187.13 = 81,746.42/x
  3. Step 3: Cross multiply
    142,156.22x = 196,187.13 × 81,746.42
  4. Step 4: Simplify right side
    142,156.22x = 16,037,594,546.64
  5. Step 5: Solve for x
    x = 16,037,594,546.64/142,156.22
  6. Step 6: Final answer
    x = 112,816.70

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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.