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Finding the Fourth Proportional to 94,442.90, 141,875.55 and 78,890.90

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Solution

The fourth proportional to 94,442.90, 141,875.55 and 78,890.90 is: 118,512.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,442.90 : 141,875.55 = 78,890.90 : x
  2. Step 2: Convert to fraction form
    94,442.90/141,875.55 = 78,890.90/x
  3. Step 3: Cross multiply
    94,442.90x = 141,875.55 × 78,890.90
  4. Step 4: Simplify right side
    94,442.90x = 11,192,689,827.50
  5. Step 5: Solve for x
    x = 11,192,689,827.50/94,442.90
  6. Step 6: Final answer
    x = 118,512.77

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.