Home / 118,358.28-163,333.55-64,643.32

Finding the Fourth Proportional to 118,358.28, 163,333.55 and 64,643.32

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Solution

The fourth proportional to 118,358.28, 163,333.55 and 64,643.32 is: 89,207.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,358.28 : 163,333.55 = 64,643.32 : x
  2. Step 2: Convert to fraction form
    118,358.28/163,333.55 = 64,643.32/x
  3. Step 3: Cross multiply
    118,358.28x = 163,333.55 × 64,643.32
  4. Step 4: Simplify right side
    118,358.28x = 10,558,422,939.39
  5. Step 5: Solve for x
    x = 10,558,422,939.39/118,358.28
  6. Step 6: Final answer
    x = 89,207.30

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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.