Home / 141,915.75-212,873.64-57,721.71

Finding the Fourth Proportional to 141,915.75, 212,873.64 and 57,721.71

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Solution

The fourth proportional to 141,915.75, 212,873.64 and 57,721.71 is: 86,582.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,915.75 : 212,873.64 = 57,721.71 : x
  2. Step 2: Convert to fraction form
    141,915.75/212,873.64 = 57,721.71/x
  3. Step 3: Cross multiply
    141,915.75x = 212,873.64 × 57,721.71
  4. Step 4: Simplify right side
    141,915.75x = 12,287,430,226.12
  5. Step 5: Solve for x
    x = 12,287,430,226.12/141,915.75
  6. Step 6: Final answer
    x = 86,582.57

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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.