Home / 134,851.57-202,214.77-78,707.91

Finding the Fourth Proportional to 134,851.57, 202,214.77 and 78,707.91

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Solution

The fourth proportional to 134,851.57, 202,214.77 and 78,707.91 is: 118,025.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,851.57 : 202,214.77 = 78,707.91 : x
  2. Step 2: Convert to fraction form
    134,851.57/202,214.77 = 78,707.91/x
  3. Step 3: Cross multiply
    134,851.57x = 202,214.77 × 78,707.91
  4. Step 4: Simplify right side
    134,851.57x = 15,915,901,917.83
  5. Step 5: Solve for x
    x = 15,915,901,917.83/134,851.57
  6. Step 6: Final answer
    x = 118,025.34

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1.5x scale

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.