Home / 180,690.17-249,348.74-100,117.44

Finding the Fourth Proportional to 180,690.17, 249,348.74 and 100,117.44

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Solution

The fourth proportional to 180,690.17, 249,348.74 and 100,117.44 is: 138,160.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,690.17 : 249,348.74 = 100,117.44 : x
  2. Step 2: Convert to fraction form
    180,690.17/249,348.74 = 100,117.44/x
  3. Step 3: Cross multiply
    180,690.17x = 249,348.74 × 100,117.44
  4. Step 4: Simplify right side
    180,690.17x = 24,964,157,015.44
  5. Step 5: Solve for x
    x = 24,964,157,015.44/180,690.17
  6. Step 6: Final answer
    x = 138,160.02

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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.