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Finding the Fourth Proportional to 148,630.96, 205,203.72 and 103,295.44

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Solution

The fourth proportional to 148,630.96, 205,203.72 and 103,295.44 is: 142,612.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,630.96 : 205,203.72 = 103,295.44 : x
  2. Step 2: Convert to fraction form
    148,630.96/205,203.72 = 103,295.44/x
  3. Step 3: Cross multiply
    148,630.96x = 205,203.72 × 103,295.44
  4. Step 4: Simplify right side
    148,630.96x = 21,196,608,547.04
  5. Step 5: Solve for x
    x = 21,196,608,547.04/148,630.96
  6. Step 6: Final answer
    x = 142,612.34

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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.