Home / 147,740.52-221,610.78-68,909.88

Finding the Fourth Proportional to 147,740.52, 221,610.78 and 68,909.88

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Solution

The fourth proportional to 147,740.52, 221,610.78 and 68,909.88 is: 103,364.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,740.52 : 221,610.78 = 68,909.88 : x
  2. Step 2: Convert to fraction form
    147,740.52/221,610.78 = 68,909.88/x
  3. Step 3: Cross multiply
    147,740.52x = 221,610.78 × 68,909.88
  4. Step 4: Simplify right side
    147,740.52x = 15,271,172,256.51
  5. Step 5: Solve for x
    x = 15,271,172,256.51/147,740.52
  6. Step 6: Final answer
    x = 103,364.82

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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.