Home / 147,423.53-221,135.30-42,242.50

Finding the Fourth Proportional to 147,423.53, 221,135.30 and 42,242.50

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Solution

The fourth proportional to 147,423.53, 221,135.30 and 42,242.50 is: 63,363.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,423.53 : 221,135.30 = 42,242.50 : x
  2. Step 2: Convert to fraction form
    147,423.53/221,135.30 = 42,242.50/x
  3. Step 3: Cross multiply
    147,423.53x = 221,135.30 × 42,242.50
  4. Step 4: Simplify right side
    147,423.53x = 9,341,307,910.25
  5. Step 5: Solve for x
    x = 9,341,307,910.25/147,423.53
  6. Step 6: Final answer
    x = 63,363.75

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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.