Home / 191,915.40-287,613.90-169,624.20

Finding the Fourth Proportional to 191,915.40, 287,613.90 and 169,624.20

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Solution

The fourth proportional to 191,915.40, 287,613.90 and 169,624.20 is: 254,207.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,915.40 : 287,613.90 = 169,624.20 : x
  2. Step 2: Convert to fraction form
    191,915.40/287,613.90 = 169,624.20/x
  3. Step 3: Cross multiply
    191,915.40x = 287,613.90 × 169,624.20
  4. Step 4: Simplify right side
    191,915.40x = 48,786,277,696.38
  5. Step 5: Solve for x
    x = 48,786,277,696.38/191,915.40
  6. Step 6: Final answer
    x = 254,207.21

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.