Home / 138,427.50-207,675.93-39,931.50

Finding the Fourth Proportional to 138,427.50, 207,675.93 and 39,931.50

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Solution

The fourth proportional to 138,427.50, 207,675.93 and 39,931.50 is: 59,907.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,427.50 : 207,675.93 = 39,931.50 : x
  2. Step 2: Convert to fraction form
    138,427.50/207,675.93 = 39,931.50/x
  3. Step 3: Cross multiply
    138,427.50x = 207,675.93 × 39,931.50
  4. Step 4: Simplify right side
    138,427.50x = 8,292,811,398.80
  5. Step 5: Solve for x
    x = 8,292,811,398.80/138,427.50
  6. Step 6: Final answer
    x = 59,907.25

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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.