Home / 131,670.42-181,708.32-75,087.06

Finding the Fourth Proportional to 131,670.42, 181,708.32 and 75,087.06

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Solution

The fourth proportional to 131,670.42, 181,708.32 and 75,087.06 is: 103,621.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,670.42 : 181,708.32 = 75,087.06 : x
  2. Step 2: Convert to fraction form
    131,670.42/181,708.32 = 75,087.06/x
  3. Step 3: Cross multiply
    131,670.42x = 181,708.32 × 75,087.06
  4. Step 4: Simplify right side
    131,670.42x = 13,643,943,526.34
  5. Step 5: Solve for x
    x = 13,643,943,526.34/131,670.42
  6. Step 6: Final answer
    x = 103,621.93

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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.