Home / 143,130.45-197,526.19-79,468.25

Finding the Fourth Proportional to 143,130.45, 197,526.19 and 79,468.25

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Solution

The fourth proportional to 143,130.45, 197,526.19 and 79,468.25 is: 109,669.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,130.45 : 197,526.19 = 79,468.25 : x
  2. Step 2: Convert to fraction form
    143,130.45/197,526.19 = 79,468.25/x
  3. Step 3: Cross multiply
    143,130.45x = 197,526.19 × 79,468.25
  4. Step 4: Simplify right side
    143,130.45x = 15,697,060,648.47
  5. Step 5: Solve for x
    x = 15,697,060,648.47/143,130.45
  6. Step 6: Final answer
    x = 109,669.61

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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.