Home / 123,815.10-185,722.65-122,648.70

Finding the Fourth Proportional to 123,815.10, 185,722.65 and 122,648.70

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Solution

The fourth proportional to 123,815.10, 185,722.65 and 122,648.70 is: 183,973.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,815.10 : 185,722.65 = 122,648.70 : x
  2. Step 2: Convert to fraction form
    123,815.10/185,722.65 = 122,648.70/x
  3. Step 3: Cross multiply
    123,815.10x = 185,722.65 × 122,648.70
  4. Step 4: Simplify right side
    123,815.10x = 22,778,641,583.06
  5. Step 5: Solve for x
    x = 22,778,641,583.06/123,815.10
  6. Step 6: Final answer
    x = 183,973.05

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Similar ratio
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1.5x scale

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.