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Finding the Fourth Proportional to 163,232.87, 225,272.50 and 90,639.50

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Solution

The fourth proportional to 163,232.87, 225,272.50 and 90,639.50 is: 125,088.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,232.87 : 225,272.50 = 90,639.50 : x
  2. Step 2: Convert to fraction form
    163,232.87/225,272.50 = 90,639.50/x
  3. Step 3: Cross multiply
    163,232.87x = 225,272.50 × 90,639.50
  4. Step 4: Simplify right side
    163,232.87x = 20,418,585,410.79
  5. Step 5: Solve for x
    x = 20,418,585,410.79/163,232.87
  6. Step 6: Final answer
    x = 125,088.69

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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.