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Finding the Fourth Proportional to 97,670.12, 145,684.12 and 88,700.72

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Solution

The fourth proportional to 97,670.12, 145,684.12 and 88,700.72 is: 132,305.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,670.12 : 145,684.12 = 88,700.72 : x
  2. Step 2: Convert to fraction form
    97,670.12/145,684.12 = 88,700.72/x
  3. Step 3: Cross multiply
    97,670.12x = 145,684.12 × 88,700.72
  4. Step 4: Simplify right side
    97,670.12x = 12,922,286,336.57
  5. Step 5: Solve for x
    x = 12,922,286,336.57/97,670.12
  6. Step 6: Final answer
    x = 132,305.42

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.