Home / 140,218.08-210,327.12-74,538.72

Finding the Fourth Proportional to 140,218.08, 210,327.12 and 74,538.72

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Solution

The fourth proportional to 140,218.08, 210,327.12 and 74,538.72 is: 111,808.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,218.08 : 210,327.12 = 74,538.72 : x
  2. Step 2: Convert to fraction form
    140,218.08/210,327.12 = 74,538.72/x
  3. Step 3: Cross multiply
    140,218.08x = 210,327.12 × 74,538.72
  4. Step 4: Simplify right side
    140,218.08x = 15,677,514,306.09
  5. Step 5: Solve for x
    x = 15,677,514,306.09/140,218.08
  6. Step 6: Final answer
    x = 111,808.08

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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.