Home / 94,442.40-141,874.80-78,890.40

Finding the Fourth Proportional to 94,442.40, 141,874.80 and 78,890.40

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Solution

The fourth proportional to 94,442.40, 141,874.80 and 78,890.40 is: 118,512.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,442.40 : 141,874.80 = 78,890.40 : x
  2. Step 2: Convert to fraction form
    94,442.40/141,874.80 = 78,890.40/x
  3. Step 3: Cross multiply
    94,442.40x = 141,874.80 × 78,890.40
  4. Step 4: Simplify right side
    94,442.40x = 11,192,559,721.92
  5. Step 5: Solve for x
    x = 11,192,559,721.92/94,442.40
  6. Step 6: Final answer
    x = 118,512.02

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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.