Home / 131,574.75-181,559.10-77,862.03

Finding the Fourth Proportional to 131,574.75, 181,559.10 and 77,862.03

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Solution

The fourth proportional to 131,574.75, 181,559.10 and 77,862.03 is: 107,441.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,574.75 : 181,559.10 = 77,862.03 : x
  2. Step 2: Convert to fraction form
    131,574.75/181,559.10 = 77,862.03/x
  3. Step 3: Cross multiply
    131,574.75x = 181,559.10 × 77,862.03
  4. Step 4: Simplify right side
    131,574.75x = 14,136,560,090.97
  5. Step 5: Solve for x
    x = 14,136,560,090.97/131,574.75
  6. Step 6: Final answer
    x = 107,441.28

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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.