Home / 142,407.25-213,471.15-79,257.63

Finding the Fourth Proportional to 142,407.25, 213,471.15 and 79,257.63

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Solution

The fourth proportional to 142,407.25, 213,471.15 and 79,257.63 is: 118,808.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,407.25 : 213,471.15 = 79,257.63 : x
  2. Step 2: Convert to fraction form
    142,407.25/213,471.15 = 79,257.63/x
  3. Step 3: Cross multiply
    142,407.25x = 213,471.15 × 79,257.63
  4. Step 4: Simplify right side
    142,407.25x = 16,919,217,422.37
  5. Step 5: Solve for x
    x = 16,919,217,422.37/142,407.25
  6. Step 6: Final answer
    x = 118,808.68

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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.