Home / 118,351.28-163,323.90-64,636.32

Finding the Fourth Proportional to 118,351.28, 163,323.90 and 64,636.32

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Solution

The fourth proportional to 118,351.28, 163,323.90 and 64,636.32 is: 89,197.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,351.28 : 163,323.90 = 64,636.32 : x
  2. Step 2: Convert to fraction form
    118,351.28/163,323.90 = 64,636.32/x
  3. Step 3: Cross multiply
    118,351.28x = 163,323.90 × 64,636.32
  4. Step 4: Simplify right side
    118,351.28x = 10,556,655,864.05
  5. Step 5: Solve for x
    x = 10,556,655,864.05/118,351.28
  6. Step 6: Final answer
    x = 89,197.65

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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.