Home / 180,825.32-249,538.52-100,250.78

Finding the Fourth Proportional to 180,825.32, 249,538.52 and 100,250.78

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Solution

The fourth proportional to 180,825.32, 249,538.52 and 100,250.78 is: 138,345.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,825.32 : 249,538.52 = 100,250.78 : x
  2. Step 2: Convert to fraction form
    180,825.32/249,538.52 = 100,250.78/x
  3. Step 3: Cross multiply
    180,825.32x = 249,538.52 × 100,250.78
  4. Step 4: Simplify right side
    180,825.32x = 25,016,429,521.10
  5. Step 5: Solve for x
    x = 25,016,429,521.10/180,825.32
  6. Step 6: Final answer
    x = 138,345.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.