Home / 141,644.64-212,017.68-79,125.60

Finding the Fourth Proportional to 141,644.64, 212,017.68 and 79,125.60

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Solution

The fourth proportional to 141,644.64, 212,017.68 and 79,125.60 is: 118,437.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,644.64 : 212,017.68 = 79,125.60 : x
  2. Step 2: Convert to fraction form
    141,644.64/212,017.68 = 79,125.60/x
  3. Step 3: Cross multiply
    141,644.64x = 212,017.68 × 79,125.60
  4. Step 4: Simplify right side
    141,644.64x = 16,776,026,140.61
  5. Step 5: Solve for x
    x = 16,776,026,140.61/141,644.64
  6. Step 6: Final answer
    x = 118,437.42

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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.