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Finding the Fourth Proportional to 180,512.64, 249,116.63 and 99,949.03

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Solution

The fourth proportional to 180,512.64, 249,116.63 and 99,949.03 is: 137,934.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,512.64 : 249,116.63 = 99,949.03 : x
  2. Step 2: Convert to fraction form
    180,512.64/249,116.63 = 99,949.03/x
  3. Step 3: Cross multiply
    180,512.64x = 249,116.63 × 99,949.03
  4. Step 4: Simplify right side
    180,512.64x = 24,898,965,525.37
  5. Step 5: Solve for x
    x = 24,898,965,525.37/180,512.64
  6. Step 6: Final answer
    x = 137,934.75

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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.