Home / 147,112.74-203,030.53-86,702.85

Finding the Fourth Proportional to 147,112.74, 203,030.53 and 86,702.85

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Solution

The fourth proportional to 147,112.74, 203,030.53 and 86,702.85 is: 119,658.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,112.74 : 203,030.53 = 86,702.85 : x
  2. Step 2: Convert to fraction form
    147,112.74/203,030.53 = 86,702.85/x
  3. Step 3: Cross multiply
    147,112.74x = 203,030.53 × 86,702.85
  4. Step 4: Simplify right side
    147,112.74x = 17,603,324,753.75
  5. Step 5: Solve for x
    x = 17,603,324,753.75/147,112.74
  6. Step 6: Final answer
    x = 119,658.74

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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.