Home / 157,394.09-217,237.38-103,683.80

Finding the Fourth Proportional to 157,394.09, 217,237.38 and 103,683.80

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Solution

The fourth proportional to 157,394.09, 217,237.38 and 103,683.80 is: 143,105.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,394.09 : 217,237.38 = 103,683.80 : x
  2. Step 2: Convert to fraction form
    157,394.09/217,237.38 = 103,683.80/x
  3. Step 3: Cross multiply
    157,394.09x = 217,237.38 × 103,683.80
  4. Step 4: Simplify right side
    157,394.09x = 22,523,997,060.44
  5. Step 5: Solve for x
    x = 22,523,997,060.44/157,394.09
  6. Step 6: Final answer
    x = 143,105.74

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1.5x scale

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.