Home / 98,307.11-147,436.35-42,140.85

Finding the Fourth Proportional to 98,307.11, 147,436.35 and 42,140.85

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Solution

The fourth proportional to 98,307.11, 147,436.35 and 42,140.85 is: 63,200.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,307.11 : 147,436.35 = 42,140.85 : x
  2. Step 2: Convert to fraction form
    98,307.11/147,436.35 = 42,140.85/x
  3. Step 3: Cross multiply
    98,307.11x = 147,436.35 × 42,140.85
  4. Step 4: Simplify right side
    98,307.11x = 6,213,093,109.90
  5. Step 5: Solve for x
    x = 6,213,093,109.90/98,307.11
  6. Step 6: Final answer
    x = 63,200.86

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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.