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Finding the Fourth Proportional to 180,636.89, 249,275.65 and 100,064.17

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Solution

The fourth proportional to 180,636.89, 249,275.65 and 100,064.17 is: 138,086.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,636.89 : 249,275.65 = 100,064.17 : x
  2. Step 2: Convert to fraction form
    180,636.89/249,275.65 = 100,064.17/x
  3. Step 3: Cross multiply
    180,636.89x = 249,275.65 × 100,064.17
  4. Step 4: Simplify right side
    180,636.89x = 24,943,560,145.11
  5. Step 5: Solve for x
    x = 24,943,560,145.11/180,636.89
  6. Step 6: Final answer
    x = 138,086.74

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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.