Home / 134,506.40-185,611.72-77,142.76

Finding the Fourth Proportional to 134,506.40, 185,611.72 and 77,142.76

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Solution

The fourth proportional to 134,506.40, 185,611.72 and 77,142.76 is: 106,452.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,506.40 : 185,611.72 = 77,142.76 : x
  2. Step 2: Convert to fraction form
    134,506.40/185,611.72 = 77,142.76/x
  3. Step 3: Cross multiply
    134,506.40x = 185,611.72 × 77,142.76
  4. Step 4: Simplify right side
    134,506.40x = 14,318,599,055.37
  5. Step 5: Solve for x
    x = 14,318,599,055.37/134,506.40
  6. Step 6: Final answer
    x = 106,452.92

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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.