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Finding the Fourth Proportional to 180,641.76, 249,277.92 and 100,072.68

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Solution

The fourth proportional to 180,641.76, 249,277.92 and 100,072.68 is: 138,096.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,641.76 : 249,277.92 = 100,072.68 : x
  2. Step 2: Convert to fraction form
    180,641.76/249,277.92 = 100,072.68/x
  3. Step 3: Cross multiply
    180,641.76x = 249,277.92 × 100,072.68
  4. Step 4: Simplify right side
    180,641.76x = 24,945,909,519.23
  5. Step 5: Solve for x
    x = 24,945,909,519.23/180,641.76
  6. Step 6: Final answer
    x = 138,096.03

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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.