Home / 180,902.16-249,640.65-100,329.03

Finding the Fourth Proportional to 180,902.16, 249,640.65 and 100,329.03

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Solution

The fourth proportional to 180,902.16, 249,640.65 and 100,329.03 is: 138,451.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,902.16 : 249,640.65 = 100,329.03 : x
  2. Step 2: Convert to fraction form
    180,902.16/249,640.65 = 100,329.03/x
  3. Step 3: Cross multiply
    180,902.16x = 249,640.65 × 100,329.03
  4. Step 4: Simplify right side
    180,902.16x = 25,046,204,263.07
  5. Step 5: Solve for x
    x = 25,046,204,263.07/180,902.16
  6. Step 6: Final answer
    x = 138,451.66

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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.