Home / 134,856.07-202,221.52-78,712.41

Finding the Fourth Proportional to 134,856.07, 202,221.52 and 78,712.41

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Solution

The fourth proportional to 134,856.07, 202,221.52 and 78,712.41 is: 118,032.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,856.07 : 202,221.52 = 78,712.41 : x
  2. Step 2: Convert to fraction form
    134,856.07/202,221.52 = 78,712.41/x
  3. Step 3: Cross multiply
    134,856.07x = 202,221.52 × 78,712.41
  4. Step 4: Simplify right side
    134,856.07x = 15,917,343,193.06
  5. Step 5: Solve for x
    x = 15,917,343,193.06/134,856.07
  6. Step 6: Final answer
    x = 118,032.09

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.