Home / 118,239.78-163,174.38-64,528.28

Finding the Fourth Proportional to 118,239.78, 163,174.38 and 64,528.28

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Solution

The fourth proportional to 118,239.78, 163,174.38 and 64,528.28 is: 89,050.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,239.78 : 163,174.38 = 64,528.28 : x
  2. Step 2: Convert to fraction form
    118,239.78/163,174.38 = 64,528.28/x
  3. Step 3: Cross multiply
    118,239.78x = 163,174.38 × 64,528.28
  4. Step 4: Simplify right side
    118,239.78x = 10,529,361,265.59
  5. Step 5: Solve for x
    x = 10,529,361,265.59/118,239.78
  6. Step 6: Final answer
    x = 89,050.92

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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.