Home / 126,916.59-190,398.91-51,021

Finding the Fourth Proportional to 126,916.59, 190,398.91 and 51,021

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Solution

The fourth proportional to 126,916.59, 190,398.91 and 51,021 is: 76,541.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,916.59 : 190,398.91 = 51,021 : x
  2. Step 2: Convert to fraction form
    126,916.59/190,398.91 = 51,021/x
  3. Step 3: Cross multiply
    126,916.59x = 190,398.91 × 51,021
  4. Step 4: Simplify right side
    126,916.59x = 9,714,342,787.11
  5. Step 5: Solve for x
    x = 9,714,342,787.11/126,916.59
  6. Step 6: Final answer
    x = 76,541.16

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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.