Home / 131,823.34-181,915.16-71,392.58

Finding the Fourth Proportional to 131,823.34, 181,915.16 and 71,392.58

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Solution

The fourth proportional to 131,823.34, 181,915.16 and 71,392.58 is: 98,521.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,823.34 : 181,915.16 = 71,392.58 : x
  2. Step 2: Convert to fraction form
    131,823.34/181,915.16 = 71,392.58/x
  3. Step 3: Cross multiply
    131,823.34x = 181,915.16 × 71,392.58
  4. Step 4: Simplify right side
    131,823.34x = 12,987,392,613.51
  5. Step 5: Solve for x
    x = 12,987,392,613.51/131,823.34
  6. Step 6: Final answer
    x = 98,521.19

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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.