Home / 140,257.72-210,238.80-69,081.76

Finding the Fourth Proportional to 140,257.72, 210,238.80 and 69,081.76

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Solution

The fourth proportional to 140,257.72, 210,238.80 and 69,081.76 is: 103,549.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,257.72 : 210,238.80 = 69,081.76 : x
  2. Step 2: Convert to fraction form
    140,257.72/210,238.80 = 69,081.76/x
  3. Step 3: Cross multiply
    140,257.72x = 210,238.80 × 69,081.76
  4. Step 4: Simplify right side
    140,257.72x = 14,523,666,324.29
  5. Step 5: Solve for x
    x = 14,523,666,324.29/140,257.72
  6. Step 6: Final answer
    x = 103,549.85

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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.