Home / 131,710.80-197,561.40-52,803.60

Finding the Fourth Proportional to 131,710.80, 197,561.40 and 52,803.60

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Solution

The fourth proportional to 131,710.80, 197,561.40 and 52,803.60 is: 79,203.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,710.80 : 197,561.40 = 52,803.60 : x
  2. Step 2: Convert to fraction form
    131,710.80/197,561.40 = 52,803.60/x
  3. Step 3: Cross multiply
    131,710.80x = 197,561.40 × 52,803.60
  4. Step 4: Simplify right side
    131,710.80x = 10,431,953,141.04
  5. Step 5: Solve for x
    x = 10,431,953,141.04/131,710.80
  6. Step 6: Final answer
    x = 79,203.48

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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.