Home / 146,139.40-219,266.70-57,377.80

Finding the Fourth Proportional to 146,139.40, 219,266.70 and 57,377.80

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Solution

The fourth proportional to 146,139.40, 219,266.70 and 57,377.80 is: 86,089.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,139.40 : 219,266.70 = 57,377.80 : x
  2. Step 2: Convert to fraction form
    146,139.40/219,266.70 = 57,377.80/x
  3. Step 3: Cross multiply
    146,139.40x = 219,266.70 × 57,377.80
  4. Step 4: Simplify right side
    146,139.40x = 12,581,040,859.26
  5. Step 5: Solve for x
    x = 12,581,040,859.26/146,139.40
  6. Step 6: Final answer
    x = 86,089.32

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1.5x scale

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.