Home / 127,919.32-176,457.79-89,735.72

Finding the Fourth Proportional to 127,919.32, 176,457.79 and 89,735.72

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Solution

The fourth proportional to 127,919.32, 176,457.79 and 89,735.72 is: 123,785.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,919.32 : 176,457.79 = 89,735.72 : x
  2. Step 2: Convert to fraction form
    127,919.32/176,457.79 = 89,735.72/x
  3. Step 3: Cross multiply
    127,919.32x = 176,457.79 × 89,735.72
  4. Step 4: Simplify right side
    127,919.32x = 15,834,566,065.14
  5. Step 5: Solve for x
    x = 15,834,566,065.14/127,919.32
  6. Step 6: Final answer
    x = 123,785.57

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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.