Home / 71,011.15-106,100.75-68,527.77

Finding the Fourth Proportional to 71,011.15, 106,100.75 and 68,527.77

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Solution

The fourth proportional to 71,011.15, 106,100.75 and 68,527.77 is: 102,390.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,011.15 : 106,100.75 = 68,527.77 : x
  2. Step 2: Convert to fraction form
    71,011.15/106,100.75 = 68,527.77/x
  3. Step 3: Cross multiply
    71,011.15x = 106,100.75 × 68,527.77
  4. Step 4: Simplify right side
    71,011.15x = 7,270,847,792.83
  5. Step 5: Solve for x
    x = 7,270,847,792.83/71,011.15
  6. Step 6: Final answer
    x = 102,390.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.