Home / 141,323.79-212,007.20-87,972.60

Finding the Fourth Proportional to 141,323.79, 212,007.20 and 87,972.60

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Solution

The fourth proportional to 141,323.79, 212,007.20 and 87,972.60 is: 131,972.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,323.79 : 212,007.20 = 87,972.60 : x
  2. Step 2: Convert to fraction form
    141,323.79/212,007.20 = 87,972.60/x
  3. Step 3: Cross multiply
    141,323.79x = 212,007.20 × 87,972.60
  4. Step 4: Simplify right side
    141,323.79x = 18,650,824,602.72
  5. Step 5: Solve for x
    x = 18,650,824,602.72/141,323.79
  6. Step 6: Final answer
    x = 131,972.29

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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.