Home / 130,926.11-180,698.58-77,217.03

Finding the Fourth Proportional to 130,926.11, 180,698.58 and 77,217.03

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Solution

The fourth proportional to 130,926.11, 180,698.58 and 77,217.03 is: 106,571.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,926.11 : 180,698.58 = 77,217.03 : x
  2. Step 2: Convert to fraction form
    130,926.11/180,698.58 = 77,217.03/x
  3. Step 3: Cross multiply
    130,926.11x = 180,698.58 × 77,217.03
  4. Step 4: Simplify right side
    130,926.11x = 13,953,007,672.82
  5. Step 5: Solve for x
    x = 13,953,007,672.82/130,926.11
  6. Step 6: Final answer
    x = 106,571.62

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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.