Home / 147,915.20-221,743.20-88,774.40

Finding the Fourth Proportional to 147,915.20, 221,743.20 and 88,774.40

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Solution

The fourth proportional to 147,915.20, 221,743.20 and 88,774.40 is: 133,083.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,915.20 : 221,743.20 = 88,774.40 : x
  2. Step 2: Convert to fraction form
    147,915.20/221,743.20 = 88,774.40/x
  3. Step 3: Cross multiply
    147,915.20x = 221,743.20 × 88,774.40
  4. Step 4: Simplify right side
    147,915.20x = 19,685,119,534.08
  5. Step 5: Solve for x
    x = 19,685,119,534.08/147,915.20
  6. Step 6: Final answer
    x = 133,083.82

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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.