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Finding the Fourth Proportional to 180,636.71, 249,275.39 and 100,063.98

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Solution

The fourth proportional to 180,636.71, 249,275.39 and 100,063.98 is: 138,086.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,636.71 : 249,275.39 = 100,063.98 : x
  2. Step 2: Convert to fraction form
    180,636.71/249,275.39 = 100,063.98/x
  3. Step 3: Cross multiply
    180,636.71x = 249,275.39 × 100,063.98
  4. Step 4: Simplify right side
    180,636.71x = 24,943,487,639.45
  5. Step 5: Solve for x
    x = 24,943,487,639.45/180,636.71
  6. Step 6: Final answer
    x = 138,086.48

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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.