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Finding the Fourth Proportional to 180,920.41, 249,700.06 and 100,373.88

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Solution

The fourth proportional to 180,920.41, 249,700.06 and 100,373.88 is: 138,532.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,920.41 : 249,700.06 = 100,373.88 : x
  2. Step 2: Convert to fraction form
    180,920.41/249,700.06 = 100,373.88/x
  3. Step 3: Cross multiply
    180,920.41x = 249,700.06 × 100,373.88
  4. Step 4: Simplify right side
    180,920.41x = 25,063,364,920.28
  5. Step 5: Solve for x
    x = 25,063,364,920.28/180,920.41
  6. Step 6: Final answer
    x = 138,532.54

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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.