Home / 147,772.90-221,659.35-145,440.10

Finding the Fourth Proportional to 147,772.90, 221,659.35 and 145,440.10

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Solution

The fourth proportional to 147,772.90, 221,659.35 and 145,440.10 is: 218,160.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,772.90 : 221,659.35 = 145,440.10 : x
  2. Step 2: Convert to fraction form
    147,772.90/221,659.35 = 145,440.10/x
  3. Step 3: Cross multiply
    147,772.90x = 221,659.35 × 145,440.10
  4. Step 4: Simplify right side
    147,772.90x = 32,238,158,029.94
  5. Step 5: Solve for x
    x = 32,238,158,029.94/147,772.90
  6. Step 6: Final answer
    x = 218,160.15

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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.