Home / 131,835.11-181,943.63-74,484.96

Finding the Fourth Proportional to 131,835.11, 181,943.63 and 74,484.96

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Solution

The fourth proportional to 131,835.11, 181,943.63 and 74,484.96 is: 102,795.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,835.11 : 181,943.63 = 74,484.96 : x
  2. Step 2: Convert to fraction form
    131,835.11/181,943.63 = 74,484.96/x
  3. Step 3: Cross multiply
    131,835.11x = 181,943.63 × 74,484.96
  4. Step 4: Simplify right side
    131,835.11x = 13,552,064,189.02
  5. Step 5: Solve for x
    x = 13,552,064,189.02/131,835.11
  6. Step 6: Final answer
    x = 102,795.57

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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.