Home / 130,833.27-180,489.60-77,081.67

Finding the Fourth Proportional to 130,833.27, 180,489.60 and 77,081.67

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Solution

The fourth proportional to 130,833.27, 180,489.60 and 77,081.67 is: 106,337.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,833.27 : 180,489.60 = 77,081.67 : x
  2. Step 2: Convert to fraction form
    130,833.27/180,489.60 = 77,081.67/x
  3. Step 3: Cross multiply
    130,833.27x = 180,489.60 × 77,081.67
  4. Step 4: Simplify right side
    130,833.27x = 13,912,439,785.63
  5. Step 5: Solve for x
    x = 13,912,439,785.63/130,833.27
  6. Step 6: Final answer
    x = 106,337.17

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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.