Home / 132,915.65-183,319.93-85,173.44

Finding the Fourth Proportional to 132,915.65, 183,319.93 and 85,173.44

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Solution

The fourth proportional to 132,915.65, 183,319.93 and 85,173.44 is: 117,472.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,915.65 : 183,319.93 = 85,173.44 : x
  2. Step 2: Convert to fraction form
    132,915.65/183,319.93 = 85,173.44/x
  3. Step 3: Cross multiply
    132,915.65x = 183,319.93 × 85,173.44
  4. Step 4: Simplify right side
    132,915.65x = 15,613,988,800.60
  5. Step 5: Solve for x
    x = 15,613,988,800.60/132,915.65
  6. Step 6: Final answer
    x = 117,472.91

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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.