Home / 130,516.11-180,123.57-76,065.41

Finding the Fourth Proportional to 130,516.11, 180,123.57 and 76,065.41

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Solution

The fourth proportional to 130,516.11, 180,123.57 and 76,065.41 is: 104,976.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,516.11 : 180,123.57 = 76,065.41 : x
  2. Step 2: Convert to fraction form
    130,516.11/180,123.57 = 76,065.41/x
  3. Step 3: Cross multiply
    130,516.11x = 180,123.57 × 76,065.41
  4. Step 4: Simplify right side
    130,516.11x = 13,701,173,653.02
  5. Step 5: Solve for x
    x = 13,701,173,653.02/130,516.11
  6. Step 6: Final answer
    x = 104,976.88

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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.