Home / 131,579.06-181,574.61-75,008.66

Finding the Fourth Proportional to 131,579.06, 181,574.61 and 75,008.66

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Solution

The fourth proportional to 131,579.06, 181,574.61 and 75,008.66 is: 103,509.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,579.06 : 181,574.61 = 75,008.66 : x
  2. Step 2: Convert to fraction form
    131,579.06/181,574.61 = 75,008.66/x
  3. Step 3: Cross multiply
    131,579.06x = 181,574.61 × 75,008.66
  4. Step 4: Simplify right side
    131,579.06x = 13,619,668,186.12
  5. Step 5: Solve for x
    x = 13,619,668,186.12/131,579.06
  6. Step 6: Final answer
    x = 103,509.39

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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.