Home / 147,834.20-221,751.30-42,656.60

Finding the Fourth Proportional to 147,834.20, 221,751.30 and 42,656.60

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Solution

The fourth proportional to 147,834.20, 221,751.30 and 42,656.60 is: 63,984.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,834.20 : 221,751.30 = 42,656.60 : x
  2. Step 2: Convert to fraction form
    147,834.20/221,751.30 = 42,656.60/x
  3. Step 3: Cross multiply
    147,834.20x = 221,751.30 × 42,656.60
  4. Step 4: Simplify right side
    147,834.20x = 9,459,156,503.58
  5. Step 5: Solve for x
    x = 9,459,156,503.58/147,834.20
  6. Step 6: Final answer
    x = 63,984.90

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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.