Home / 118,811.28-163,954.56-71,036.40

Finding the Fourth Proportional to 118,811.28, 163,954.56 and 71,036.40

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Solution

The fourth proportional to 118,811.28, 163,954.56 and 71,036.40 is: 98,027.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,811.28 : 163,954.56 = 71,036.40 : x
  2. Step 2: Convert to fraction form
    118,811.28/163,954.56 = 71,036.40/x
  3. Step 3: Cross multiply
    118,811.28x = 163,954.56 × 71,036.40
  4. Step 4: Simplify right side
    118,811.28x = 11,646,741,705.98
  5. Step 5: Solve for x
    x = 11,646,741,705.98/118,811.28
  6. Step 6: Final answer
    x = 98,027.24

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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.