Home / 175,123.20-262,879.20-108,638.40

Finding the Fourth Proportional to 175,123.20, 262,879.20 and 108,638.40

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Solution

The fourth proportional to 175,123.20, 262,879.20 and 108,638.40 is: 163,078.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    175,123.20 : 262,879.20 = 108,638.40 : x
  2. Step 2: Convert to fraction form
    175,123.20/262,879.20 = 108,638.40/x
  3. Step 3: Cross multiply
    175,123.20x = 262,879.20 × 108,638.40
  4. Step 4: Simplify right side
    175,123.20x = 28,558,775,681.28
  5. Step 5: Solve for x
    x = 28,558,775,681.28/175,123.20
  6. Step 6: Final answer
    x = 163,078.20

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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.