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Finding the Fourth Proportional to 180,920.86, 249,700.68 and 100,374.34

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Solution

The fourth proportional to 180,920.86, 249,700.68 and 100,374.34 is: 138,533.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,920.86 : 249,700.68 = 100,374.34 : x
  2. Step 2: Convert to fraction form
    180,920.86/249,700.68 = 100,374.34/x
  3. Step 3: Cross multiply
    180,920.86x = 249,700.68 × 100,374.34
  4. Step 4: Simplify right side
    180,920.86x = 25,063,540,704.70
  5. Step 5: Solve for x
    x = 25,063,540,704.70/180,920.86
  6. Step 6: Final answer
    x = 138,533.17

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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.