Home / 114,629.60-171,695.10-70,121.72

Finding the Fourth Proportional to 114,629.60, 171,695.10 and 70,121.72

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Solution

The fourth proportional to 114,629.60, 171,695.10 and 70,121.72 is: 105,030.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,629.60 : 171,695.10 = 70,121.72 : x
  2. Step 2: Convert to fraction form
    114,629.60/171,695.10 = 70,121.72/x
  3. Step 3: Cross multiply
    114,629.60x = 171,695.10 × 70,121.72
  4. Step 4: Simplify right side
    114,629.60x = 12,039,555,727.57
  5. Step 5: Solve for x
    x = 12,039,555,727.57/114,629.60
  6. Step 6: Final answer
    x = 105,030.08

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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.