Home / 118,274.12-163,221.37-64,564.10

Finding the Fourth Proportional to 118,274.12, 163,221.37 and 64,564.10

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Solution

The fourth proportional to 118,274.12, 163,221.37 and 64,564.10 is: 89,100.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,274.12 : 163,221.37 = 64,564.10 : x
  2. Step 2: Convert to fraction form
    118,274.12/163,221.37 = 64,564.10/x
  3. Step 3: Cross multiply
    118,274.12x = 163,221.37 × 64,564.10
  4. Step 4: Simplify right side
    118,274.12x = 10,538,239,877.30
  5. Step 5: Solve for x
    x = 10,538,239,877.30/118,274.12
  6. Step 6: Final answer
    x = 89,100.14

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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.