Home / 131,803.81-181,888.23-71,374.26

Finding the Fourth Proportional to 131,803.81, 181,888.23 and 71,374.26

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Solution

The fourth proportional to 131,803.81, 181,888.23 and 71,374.26 is: 98,495.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,803.81 : 181,888.23 = 71,374.26 : x
  2. Step 2: Convert to fraction form
    131,803.81/181,888.23 = 71,374.26/x
  3. Step 3: Cross multiply
    131,803.81x = 181,888.23 × 71,374.26
  4. Step 4: Simplify right side
    131,803.81x = 12,982,138,768.69
  5. Step 5: Solve for x
    x = 12,982,138,768.69/131,803.81
  6. Step 6: Final answer
    x = 98,495.93

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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.