Home / 130,496.32-180,076.39-76,770.95

Finding the Fourth Proportional to 130,496.32, 180,076.39 and 76,770.95

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Solution

The fourth proportional to 130,496.32, 180,076.39 and 76,770.95 is: 105,938.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,496.32 : 180,076.39 = 76,770.95 : x
  2. Step 2: Convert to fraction form
    130,496.32/180,076.39 = 76,770.95/x
  3. Step 3: Cross multiply
    130,496.32x = 180,076.39 × 76,770.95
  4. Step 4: Simplify right side
    130,496.32x = 13,824,635,149.02
  5. Step 5: Solve for x
    x = 13,824,635,149.02/130,496.32
  6. Step 6: Final answer
    x = 105,938.89

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.