Home / 83,437.74-125,156.67-20,257.98

Finding the Fourth Proportional to 83,437.74, 125,156.67 and 20,257.98

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Solution

The fourth proportional to 83,437.74, 125,156.67 and 20,257.98 is: 30,386.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,437.74 : 125,156.67 = 20,257.98 : x
  2. Step 2: Convert to fraction form
    83,437.74/125,156.67 = 20,257.98/x
  3. Step 3: Cross multiply
    83,437.74x = 125,156.67 × 20,257.98
  4. Step 4: Simplify right side
    83,437.74x = 2,535,421,317.73
  5. Step 5: Solve for x
    x = 2,535,421,317.73/83,437.74
  6. Step 6: Final answer
    x = 30,386.98

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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.