Home / 181,085.13-249,885.72-100,512.68

Finding the Fourth Proportional to 181,085.13, 249,885.72 and 100,512.68

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Solution

The fourth proportional to 181,085.13, 249,885.72 and 100,512.68 is: 138,700.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,085.13 : 249,885.72 = 100,512.68 : x
  2. Step 2: Convert to fraction form
    181,085.13/249,885.72 = 100,512.68/x
  3. Step 3: Cross multiply
    181,085.13x = 249,885.72 × 100,512.68
  4. Step 4: Simplify right side
    181,085.13x = 25,116,682,161.50
  5. Step 5: Solve for x
    x = 25,116,682,161.50/181,085.13
  6. Step 6: Final answer
    x = 138,700.96

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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.