Home / 142,813.01-197,088.35-79,146.71

Finding the Fourth Proportional to 142,813.01, 197,088.35 and 79,146.71

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Solution

The fourth proportional to 142,813.01, 197,088.35 and 79,146.71 is: 109,226.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,813.01 : 197,088.35 = 79,146.71 : x
  2. Step 2: Convert to fraction form
    142,813.01/197,088.35 = 79,146.71/x
  3. Step 3: Cross multiply
    142,813.01x = 197,088.35 × 79,146.71
  4. Step 4: Simplify right side
    142,813.01x = 15,598,894,481.83
  5. Step 5: Solve for x
    x = 15,598,894,481.83/142,813.01
  6. Step 6: Final answer
    x = 109,226.00

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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.