Home / 130,071.42-179,584.29-84,217.32

Finding the Fourth Proportional to 130,071.42, 179,584.29 and 84,217.32

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Solution

The fourth proportional to 130,071.42, 179,584.29 and 84,217.32 is: 116,275.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,071.42 : 179,584.29 = 84,217.32 : x
  2. Step 2: Convert to fraction form
    130,071.42/179,584.29 = 84,217.32/x
  3. Step 3: Cross multiply
    130,071.42x = 179,584.29 × 84,217.32
  4. Step 4: Simplify right side
    130,071.42x = 15,124,107,617.90
  5. Step 5: Solve for x
    x = 15,124,107,617.90/130,071.42
  6. Step 6: Final answer
    x = 116,275.41

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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.