Home / 134,869.89-186,107.18-74,436.63

Finding the Fourth Proportional to 134,869.89, 186,107.18 and 74,436.63

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Solution

The fourth proportional to 134,869.89, 186,107.18 and 74,436.63 is: 102,715.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,869.89 : 186,107.18 = 74,436.63 : x
  2. Step 2: Convert to fraction form
    134,869.89/186,107.18 = 74,436.63/x
  3. Step 3: Cross multiply
    134,869.89x = 186,107.18 × 74,436.63
  4. Step 4: Simplify right side
    134,869.89x = 13,853,191,298.00
  5. Step 5: Solve for x
    x = 13,853,191,298.00/134,869.89
  6. Step 6: Final answer
    x = 102,715.23

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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.