Home / 181,085.85-249,901.20-100,518.53

Finding the Fourth Proportional to 181,085.85, 249,901.20 and 100,518.53

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Solution

The fourth proportional to 181,085.85, 249,901.20 and 100,518.53 is: 138,717.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,085.85 : 249,901.20 = 100,518.53 : x
  2. Step 2: Convert to fraction form
    181,085.85/249,901.20 = 100,518.53/x
  3. Step 3: Cross multiply
    181,085.85x = 249,901.20 × 100,518.53
  4. Step 4: Simplify right side
    181,085.85x = 25,119,700,019.73
  5. Step 5: Solve for x
    x = 25,119,700,019.73/181,085.85
  6. Step 6: Final answer
    x = 138,717.08

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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.