Home / 130,920.69-196,381.19-42,187.41

Finding the Fourth Proportional to 130,920.69, 196,381.19 and 42,187.41

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Solution

The fourth proportional to 130,920.69, 196,381.19 and 42,187.41 is: 63,281.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,920.69 : 196,381.19 = 42,187.41 : x
  2. Step 2: Convert to fraction form
    130,920.69/196,381.19 = 42,187.41/x
  3. Step 3: Cross multiply
    130,920.69x = 196,381.19 × 42,187.41
  4. Step 4: Simplify right side
    130,920.69x = 8,284,813,567.88
  5. Step 5: Solve for x
    x = 8,284,813,567.88/130,920.69
  6. Step 6: Final answer
    x = 63,281.16

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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.