Home / 126,389.42-174,418.60-71,938.93

Finding the Fourth Proportional to 126,389.42, 174,418.60 and 71,938.93

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Solution

The fourth proportional to 126,389.42, 174,418.60 and 71,938.93 is: 99,276.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,389.42 : 174,418.60 = 71,938.93 : x
  2. Step 2: Convert to fraction form
    126,389.42/174,418.60 = 71,938.93/x
  3. Step 3: Cross multiply
    126,389.42x = 174,418.60 × 71,938.93
  4. Step 4: Simplify right side
    126,389.42x = 12,547,487,456.10
  5. Step 5: Solve for x
    x = 12,547,487,456.10/126,389.42
  6. Step 6: Final answer
    x = 99,276.41

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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.