Home / 180,761.47-249,465.75-100,214.26

Finding the Fourth Proportional to 180,761.47, 249,465.75 and 100,214.26

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Solution

The fourth proportional to 180,761.47, 249,465.75 and 100,214.26 is: 138,303.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,761.47 : 249,465.75 = 100,214.26 : x
  2. Step 2: Convert to fraction form
    180,761.47/249,465.75 = 100,214.26/x
  3. Step 3: Cross multiply
    180,761.47x = 249,465.75 × 100,214.26
  4. Step 4: Simplify right side
    180,761.47x = 25,000,025,531.60
  5. Step 5: Solve for x
    x = 25,000,025,531.60/180,761.47
  6. Step 6: Final answer
    x = 138,303.95

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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.