Home / 148,964.70-223,447.05-85,979.10

Finding the Fourth Proportional to 148,964.70, 223,447.05 and 85,979.10

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Solution

The fourth proportional to 148,964.70, 223,447.05 and 85,979.10 is: 128,968.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,964.70 : 223,447.05 = 85,979.10 : x
  2. Step 2: Convert to fraction form
    148,964.70/223,447.05 = 85,979.10/x
  3. Step 3: Cross multiply
    148,964.70x = 223,447.05 × 85,979.10
  4. Step 4: Simplify right side
    148,964.70x = 19,211,776,256.66
  5. Step 5: Solve for x
    x = 19,211,776,256.66/148,964.70
  6. Step 6: Final answer
    x = 128,968.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.