Home / 130,878.41-196,306.65-51,971.45

Finding the Fourth Proportional to 130,878.41, 196,306.65 and 51,971.45

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Solution

The fourth proportional to 130,878.41, 196,306.65 and 51,971.45 is: 77,952.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,878.41 : 196,306.65 = 51,971.45 : x
  2. Step 2: Convert to fraction form
    130,878.41/196,306.65 = 51,971.45/x
  3. Step 3: Cross multiply
    130,878.41x = 196,306.65 × 51,971.45
  4. Step 4: Simplify right side
    130,878.41x = 10,202,340,263.61
  5. Step 5: Solve for x
    x = 10,202,340,263.61/130,878.41
  6. Step 6: Final answer
    x = 77,952.82

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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.