Home / 134,852.45-202,216.10-78,708.71

Finding the Fourth Proportional to 134,852.45, 202,216.10 and 78,708.71

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Solution

The fourth proportional to 134,852.45, 202,216.10 and 78,708.71 is: 118,026.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,852.45 : 202,216.10 = 78,708.71 : x
  2. Step 2: Convert to fraction form
    134,852.45/202,216.10 = 78,708.71/x
  3. Step 3: Cross multiply
    134,852.45x = 202,216.10 × 78,708.71
  4. Step 4: Simplify right side
    134,852.45x = 15,916,168,484.23
  5. Step 5: Solve for x
    x = 15,916,168,484.23/134,852.45
  6. Step 6: Final answer
    x = 118,026.55

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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.