Home / 163,435.64-225,535.96-90,838.18

Finding the Fourth Proportional to 163,435.64, 225,535.96 and 90,838.18

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Solution

The fourth proportional to 163,435.64, 225,535.96 and 90,838.18 is: 125,353.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,435.64 : 225,535.96 = 90,838.18 : x
  2. Step 2: Convert to fraction form
    163,435.64/225,535.96 = 90,838.18/x
  3. Step 3: Cross multiply
    163,435.64x = 225,535.96 × 90,838.18
  4. Step 4: Simplify right side
    163,435.64x = 20,487,276,130.95
  5. Step 5: Solve for x
    x = 20,487,276,130.95/163,435.64
  6. Step 6: Final answer
    x = 125,353.79

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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.