Home / 148,702.58-222,587.31-78,368.66

Finding the Fourth Proportional to 148,702.58, 222,587.31 and 78,368.66

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Solution

The fourth proportional to 148,702.58, 222,587.31 and 78,368.66 is: 117,307.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,702.58 : 222,587.31 = 78,368.66 : x
  2. Step 2: Convert to fraction form
    148,702.58/222,587.31 = 78,368.66/x
  3. Step 3: Cross multiply
    148,702.58x = 222,587.31 × 78,368.66
  4. Step 4: Simplify right side
    148,702.58x = 17,443,869,217.70
  5. Step 5: Solve for x
    x = 17,443,869,217.70/148,702.58
  6. Step 6: Final answer
    x = 117,307.11

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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.