Home / 145,979.40-219,026.70-57,217.80

Finding the Fourth Proportional to 145,979.40, 219,026.70 and 57,217.80

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Solution

The fourth proportional to 145,979.40, 219,026.70 and 57,217.80 is: 85,849.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,979.40 : 219,026.70 = 57,217.80 : x
  2. Step 2: Convert to fraction form
    145,979.40/219,026.70 = 57,217.80/x
  3. Step 3: Cross multiply
    145,979.40x = 219,026.70 × 57,217.80
  4. Step 4: Simplify right side
    145,979.40x = 12,532,225,915.26
  5. Step 5: Solve for x
    x = 12,532,225,915.26/145,979.40
  6. Step 6: Final answer
    x = 85,849.28

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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.