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Finding the Fourth Proportional to 100,154.96, 137,477.37 and 88,570.64

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Solution

The fourth proportional to 100,154.96, 137,477.37 and 88,570.64 is: 121,576.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,154.96 : 137,477.37 = 88,570.64 : x
  2. Step 2: Convert to fraction form
    100,154.96/137,477.37 = 88,570.64/x
  3. Step 3: Cross multiply
    100,154.96x = 137,477.37 × 88,570.64
  4. Step 4: Simplify right side
    100,154.96x = 12,176,458,646.42
  5. Step 5: Solve for x
    x = 12,176,458,646.42/100,154.96
  6. Step 6: Final answer
    x = 121,576.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.