Home / 107,211.40-147,958.45-61,897.57

Finding the Fourth Proportional to 107,211.40, 147,958.45 and 61,897.57

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Solution

The fourth proportional to 107,211.40, 147,958.45 and 61,897.57 is: 85,422.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,211.40 : 147,958.45 = 61,897.57 : x
  2. Step 2: Convert to fraction form
    107,211.40/147,958.45 = 61,897.57/x
  3. Step 3: Cross multiply
    107,211.40x = 147,958.45 × 61,897.57
  4. Step 4: Simplify right side
    107,211.40x = 9,158,267,991.33
  5. Step 5: Solve for x
    x = 9,158,267,991.33/107,211.40
  6. Step 6: Final answer
    x = 85,422.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.