Home / 131,824.34-181,916.54-71,393.58

Finding the Fourth Proportional to 131,824.34, 181,916.54 and 71,393.58

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Solution

The fourth proportional to 131,824.34, 181,916.54 and 71,393.58 is: 98,522.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,824.34 : 181,916.54 = 71,393.58 : x
  2. Step 2: Convert to fraction form
    131,824.34/181,916.54 = 71,393.58/x
  3. Step 3: Cross multiply
    131,824.34x = 181,916.54 × 71,393.58
  4. Step 4: Simplify right side
    131,824.34x = 12,987,673,051.81
  5. Step 5: Solve for x
    x = 12,987,673,051.81/131,824.34
  6. Step 6: Final answer
    x = 98,522.57

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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.