Home / 131,660.56-181,687.08-75,090.16

Finding the Fourth Proportional to 131,660.56, 181,687.08 and 75,090.16

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Solution

The fourth proportional to 131,660.56, 181,687.08 and 75,090.16 is: 103,621.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,660.56 : 181,687.08 = 75,090.16 : x
  2. Step 2: Convert to fraction form
    131,660.56/181,687.08 = 75,090.16/x
  3. Step 3: Cross multiply
    131,660.56x = 181,687.08 × 75,090.16
  4. Step 4: Simplify right side
    131,660.56x = 13,642,911,907.13
  5. Step 5: Solve for x
    x = 13,642,911,907.13/131,660.56
  6. Step 6: Final answer
    x = 103,621.86

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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.