Home / 143,175.04-197,574.96-79,516.88

Finding the Fourth Proportional to 143,175.04, 197,574.96 and 79,516.88

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Solution

The fourth proportional to 143,175.04, 197,574.96 and 79,516.88 is: 109,729.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,175.04 : 197,574.96 = 79,516.88 : x
  2. Step 2: Convert to fraction form
    143,175.04/197,574.96 = 79,516.88/x
  3. Step 3: Cross multiply
    143,175.04x = 197,574.96 × 79,516.88
  4. Step 4: Simplify right side
    143,175.04x = 15,710,544,385.32
  5. Step 5: Solve for x
    x = 15,710,544,385.32/143,175.04
  6. Step 6: Final answer
    x = 109,729.63

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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.