Home / 171,378.12-236,428.50-103,356.42

Finding the Fourth Proportional to 171,378.12, 236,428.50 and 103,356.42

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Solution

The fourth proportional to 171,378.12, 236,428.50 and 103,356.42 is: 142,587.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,378.12 : 236,428.50 = 103,356.42 : x
  2. Step 2: Convert to fraction form
    171,378.12/236,428.50 = 103,356.42/x
  3. Step 3: Cross multiply
    171,378.12x = 236,428.50 × 103,356.42
  4. Step 4: Simplify right side
    171,378.12x = 24,436,403,345.97
  5. Step 5: Solve for x
    x = 24,436,403,345.97/171,378.12
  6. Step 6: Final answer
    x = 142,587.65

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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.