Home / 123,981.13-185,901.68-113,401.52

Finding the Fourth Proportional to 123,981.13, 185,901.68 and 113,401.52

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Solution

The fourth proportional to 123,981.13, 185,901.68 and 113,401.52 is: 170,038.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,981.13 : 185,901.68 = 113,401.52 : x
  2. Step 2: Convert to fraction form
    123,981.13/185,901.68 = 113,401.52/x
  3. Step 3: Cross multiply
    123,981.13x = 185,901.68 × 113,401.52
  4. Step 4: Simplify right side
    123,981.13x = 21,081,533,133.68
  5. Step 5: Solve for x
    x = 21,081,533,133.68/123,981.13
  6. Step 6: Final answer
    x = 170,038.24

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.