Home / 130,975.79-196,443.63-42,220.04

Finding the Fourth Proportional to 130,975.79, 196,443.63 and 42,220.04

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Solution

The fourth proportional to 130,975.79, 196,443.63 and 42,220.04 is: 63,323.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,975.79 : 196,443.63 = 42,220.04 : x
  2. Step 2: Convert to fraction form
    130,975.79/196,443.63 = 42,220.04/x
  3. Step 3: Cross multiply
    130,975.79x = 196,443.63 × 42,220.04
  4. Step 4: Simplify right side
    130,975.79x = 8,293,856,934.13
  5. Step 5: Solve for x
    x = 8,293,856,934.13/130,975.79
  6. Step 6: Final answer
    x = 63,323.59

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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.