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Finding the Fourth Proportional to 180,969.93, 249,740.01 and 100,402.74

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Solution

The fourth proportional to 180,969.93, 249,740.01 and 100,402.74 is: 138,556.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,969.93 : 249,740.01 = 100,402.74 : x
  2. Step 2: Convert to fraction form
    180,969.93/249,740.01 = 100,402.74/x
  3. Step 3: Cross multiply
    180,969.93x = 249,740.01 × 100,402.74
  4. Step 4: Simplify right side
    180,969.93x = 25,074,581,291.63
  5. Step 5: Solve for x
    x = 25,074,581,291.63/180,969.93
  6. Step 6: Final answer
    x = 138,556.62

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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.