Home / 127,764.40-191,683.59-52,870.72

Finding the Fourth Proportional to 127,764.40, 191,683.59 and 52,870.72

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Solution

The fourth proportional to 127,764.40, 191,683.59 and 52,870.72 is: 79,321.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,764.40 : 191,683.59 = 52,870.72 : x
  2. Step 2: Convert to fraction form
    127,764.40/191,683.59 = 52,870.72/x
  3. Step 3: Cross multiply
    127,764.40x = 191,683.59 × 52,870.72
  4. Step 4: Simplify right side
    127,764.40x = 10,134,449,415.48
  5. Step 5: Solve for x
    x = 10,134,449,415.48/127,764.40
  6. Step 6: Final answer
    x = 79,321.39

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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.