Home / 180,921.05-249,700.94-100,374.53

Finding the Fourth Proportional to 180,921.05, 249,700.94 and 100,374.53

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Solution

The fourth proportional to 180,921.05, 249,700.94 and 100,374.53 is: 138,533.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,921.05 : 249,700.94 = 100,374.53 : x
  2. Step 2: Convert to fraction form
    180,921.05/249,700.94 = 100,374.53/x
  3. Step 3: Cross multiply
    180,921.05x = 249,700.94 × 100,374.53
  4. Step 4: Simplify right side
    180,921.05x = 25,063,613,495.49
  5. Step 5: Solve for x
    x = 25,063,613,495.49/180,921.05
  6. Step 6: Final answer
    x = 138,533.43

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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.