Home / 118,329.12-163,291.20-64,615.68

Finding the Fourth Proportional to 118,329.12, 163,291.20 and 64,615.68

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Solution

The fourth proportional to 118,329.12, 163,291.20 and 64,615.68 is: 89,168.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,329.12 : 163,291.20 = 64,615.68 : x
  2. Step 2: Convert to fraction form
    118,329.12/163,291.20 = 64,615.68/x
  3. Step 3: Cross multiply
    118,329.12x = 163,291.20 × 64,615.68
  4. Step 4: Simplify right side
    118,329.12x = 10,551,171,926.02
  5. Step 5: Solve for x
    x = 10,551,171,926.02/118,329.12
  6. Step 6: Final answer
    x = 89,168.01

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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.