Home / 143,276.80-197,710.32-89,525.20

Finding the Fourth Proportional to 143,276.80, 197,710.32 and 89,525.20

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Solution

The fourth proportional to 143,276.80, 197,710.32 and 89,525.20 is: 123,537.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,276.80 : 197,710.32 = 89,525.20 : x
  2. Step 2: Convert to fraction form
    143,276.80/197,710.32 = 89,525.20/x
  3. Step 3: Cross multiply
    143,276.80x = 197,710.32 × 89,525.20
  4. Step 4: Simplify right side
    143,276.80x = 17,700,055,940.06
  5. Step 5: Solve for x
    x = 17,700,055,940.06/143,276.80
  6. Step 6: Final answer
    x = 123,537.49

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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.