Home / 143,132.40-197,866.80-109,306.80

Finding the Fourth Proportional to 143,132.40, 197,866.80 and 109,306.80

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Solution

The fourth proportional to 143,132.40, 197,866.80 and 109,306.80 is: 151,106.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,132.40 : 197,866.80 = 109,306.80 : x
  2. Step 2: Convert to fraction form
    143,132.40/197,866.80 = 109,306.80/x
  3. Step 3: Cross multiply
    143,132.40x = 197,866.80 × 109,306.80
  4. Step 4: Simplify right side
    143,132.40x = 21,628,186,734.24
  5. Step 5: Solve for x
    x = 21,628,186,734.24/143,132.40
  6. Step 6: Final answer
    x = 151,106.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.