Home / 185,622.10-278,433.15-138,966.10

Finding the Fourth Proportional to 185,622.10, 278,433.15 and 138,966.10

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Solution

The fourth proportional to 185,622.10, 278,433.15 and 138,966.10 is: 208,449.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,622.10 : 278,433.15 = 138,966.10 : x
  2. Step 2: Convert to fraction form
    185,622.10/278,433.15 = 138,966.10/x
  3. Step 3: Cross multiply
    185,622.10x = 278,433.15 × 138,966.10
  4. Step 4: Simplify right side
    185,622.10x = 38,692,768,966.22
  5. Step 5: Solve for x
    x = 38,692,768,966.22/185,622.10
  6. Step 6: Final answer
    x = 208,449.15

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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.