Home / 134,981.03-186,275.23-74,553.21

Finding the Fourth Proportional to 134,981.03, 186,275.23 and 74,553.21

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Solution

The fourth proportional to 134,981.03, 186,275.23 and 74,553.21 is: 102,884.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,981.03 : 186,275.23 = 74,553.21 : x
  2. Step 2: Convert to fraction form
    134,981.03/186,275.23 = 74,553.21/x
  3. Step 3: Cross multiply
    134,981.03x = 186,275.23 × 74,553.21
  4. Step 4: Simplify right side
    134,981.03x = 13,887,416,153.61
  5. Step 5: Solve for x
    x = 13,887,416,153.61/134,981.03
  6. Step 6: Final answer
    x = 102,884.20

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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.