Home / 147,620.90-221,431.35-88,426.10

Finding the Fourth Proportional to 147,620.90, 221,431.35 and 88,426.10

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Solution

The fourth proportional to 147,620.90, 221,431.35 and 88,426.10 is: 132,639.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,620.90 : 221,431.35 = 88,426.10 : x
  2. Step 2: Convert to fraction form
    147,620.90/221,431.35 = 88,426.10/x
  3. Step 3: Cross multiply
    147,620.90x = 221,431.35 × 88,426.10
  4. Step 4: Simplify right side
    147,620.90x = 19,580,310,698.24
  5. Step 5: Solve for x
    x = 19,580,310,698.24/147,620.90
  6. Step 6: Final answer
    x = 132,639.15

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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.