Home / 141,913.50-212,870.25-57,719.47

Finding the Fourth Proportional to 141,913.50, 212,870.25 and 57,719.47

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Solution

The fourth proportional to 141,913.50, 212,870.25 and 57,719.47 is: 86,579.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,913.50 : 212,870.25 = 57,719.47 : x
  2. Step 2: Convert to fraction form
    141,913.50/212,870.25 = 57,719.47/x
  3. Step 3: Cross multiply
    141,913.50x = 212,870.25 × 57,719.47
  4. Step 4: Simplify right side
    141,913.50x = 12,286,757,476.59
  5. Step 5: Solve for x
    x = 12,286,757,476.59/141,913.50
  6. Step 6: Final answer
    x = 86,579.20

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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.