Home / 180,736.16-249,417.32-100,165

Finding the Fourth Proportional to 180,736.16, 249,417.32 and 100,165

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Solution

The fourth proportional to 180,736.16, 249,417.32 and 100,165 is: 138,228.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,736.16 : 249,417.32 = 100,165 : x
  2. Step 2: Convert to fraction form
    180,736.16/249,417.32 = 100,165/x
  3. Step 3: Cross multiply
    180,736.16x = 249,417.32 × 100,165
  4. Step 4: Simplify right side
    180,736.16x = 24,982,885,857.80
  5. Step 5: Solve for x
    x = 24,982,885,857.80/180,736.16
  6. Step 6: Final answer
    x = 138,228.49

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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.