Home / 118,425.56-163,438.62-64,718.72

Finding the Fourth Proportional to 118,425.56, 163,438.62 and 64,718.72

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Solution

The fourth proportional to 118,425.56, 163,438.62 and 64,718.72 is: 89,318.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,425.56 : 163,438.62 = 64,718.72 : x
  2. Step 2: Convert to fraction form
    118,425.56/163,438.62 = 64,718.72/x
  3. Step 3: Cross multiply
    118,425.56x = 163,438.62 × 64,718.72
  4. Step 4: Simplify right side
    118,425.56x = 10,577,538,284.97
  5. Step 5: Solve for x
    x = 10,577,538,284.97/118,425.56
  6. Step 6: Final answer
    x = 89,318.03

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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.