Home / 142,848.78-214,287.51-52,915.70

Finding the Fourth Proportional to 142,848.78, 214,287.51 and 52,915.70

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Solution

The fourth proportional to 142,848.78, 214,287.51 and 52,915.70 is: 79,378.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,848.78 : 214,287.51 = 52,915.70 : x
  2. Step 2: Convert to fraction form
    142,848.78/214,287.51 = 52,915.70/x
  3. Step 3: Cross multiply
    142,848.78x = 214,287.51 × 52,915.70
  4. Step 4: Simplify right side
    142,848.78x = 11,339,172,521.47
  5. Step 5: Solve for x
    x = 11,339,172,521.47/142,848.78
  6. Step 6: Final answer
    x = 79,378.85

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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.