Home / 163,587.60-225,683.82-103,138.92

Finding the Fourth Proportional to 163,587.60, 225,683.82 and 103,138.92

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Solution

The fourth proportional to 163,587.60, 225,683.82 and 103,138.92 is: 142,289.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,587.60 : 225,683.82 = 103,138.92 : x
  2. Step 2: Convert to fraction form
    163,587.60/225,683.82 = 103,138.92/x
  3. Step 3: Cross multiply
    163,587.60x = 225,683.82 × 103,138.92
  4. Step 4: Simplify right side
    163,587.60x = 23,276,785,456.27
  5. Step 5: Solve for x
    x = 23,276,785,456.27/163,587.60
  6. Step 6: Final answer
    x = 142,289.42

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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.