Home / 180,918.55-249,657.42-100,340.29

Finding the Fourth Proportional to 180,918.55, 249,657.42 and 100,340.29

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Solution

The fourth proportional to 180,918.55, 249,657.42 and 100,340.29 is: 138,463.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,918.55 : 249,657.42 = 100,340.29 : x
  2. Step 2: Convert to fraction form
    180,918.55/249,657.42 = 100,340.29/x
  3. Step 3: Cross multiply
    180,918.55x = 249,657.42 × 100,340.29
  4. Step 4: Simplify right side
    180,918.55x = 25,050,697,923.45
  5. Step 5: Solve for x
    x = 25,050,697,923.45/180,918.55
  6. Step 6: Final answer
    x = 138,463.95

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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.