Home / 147,589.80-221,384.70-42,402.60

Finding the Fourth Proportional to 147,589.80, 221,384.70 and 42,402.60

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Solution

The fourth proportional to 147,589.80, 221,384.70 and 42,402.60 is: 63,603.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,589.80 : 221,384.70 = 42,402.60 : x
  2. Step 2: Convert to fraction form
    147,589.80/221,384.70 = 42,402.60/x
  3. Step 3: Cross multiply
    147,589.80x = 221,384.70 × 42,402.60
  4. Step 4: Simplify right side
    147,589.80x = 9,387,286,880.22
  5. Step 5: Solve for x
    x = 9,387,286,880.22/147,589.80
  6. Step 6: Final answer
    x = 63,603.90

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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.