Home / 134,974.40-186,261.10-74,543.74

Finding the Fourth Proportional to 134,974.40, 186,261.10 and 74,543.74

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Solution

The fourth proportional to 134,974.40, 186,261.10 and 74,543.74 is: 102,868.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,974.40 : 186,261.10 = 74,543.74 : x
  2. Step 2: Convert to fraction form
    134,974.40/186,261.10 = 74,543.74/x
  3. Step 3: Cross multiply
    134,974.40x = 186,261.10 × 74,543.74
  4. Step 4: Simplify right side
    134,974.40x = 13,884,598,358.50
  5. Step 5: Solve for x
    x = 13,884,598,358.50/134,974.40
  6. Step 6: Final answer
    x = 102,868.39

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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.