Home / 163,631.90-245,338.50-132,080.78

Finding the Fourth Proportional to 163,631.90, 245,338.50 and 132,080.78

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Solution

The fourth proportional to 163,631.90, 245,338.50 and 132,080.78 is: 198,032.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,631.90 : 245,338.50 = 132,080.78 : x
  2. Step 2: Convert to fraction form
    163,631.90/245,338.50 = 132,080.78/x
  3. Step 3: Cross multiply
    163,631.90x = 245,338.50 × 132,080.78
  4. Step 4: Simplify right side
    163,631.90x = 32,404,500,444.03
  5. Step 5: Solve for x
    x = 32,404,500,444.03/163,631.90
  6. Step 6: Final answer
    x = 198,032.90

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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.