Home / 118,431.61-163,435.28-64,716.96

Finding the Fourth Proportional to 118,431.61, 163,435.28 and 64,716.96

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Solution

The fourth proportional to 118,431.61, 163,435.28 and 64,716.96 is: 89,309.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,431.61 : 163,435.28 = 64,716.96 : x
  2. Step 2: Convert to fraction form
    118,431.61/163,435.28 = 64,716.96/x
  3. Step 3: Cross multiply
    118,431.61x = 163,435.28 × 64,716.96
  4. Step 4: Simplify right side
    118,431.61x = 10,577,034,478.35
  5. Step 5: Solve for x
    x = 10,577,034,478.35/118,431.61
  6. Step 6: Final answer
    x = 89,309.22

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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.