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Finding the Fourth Proportional to 97,661.94, 134,765.33 and 90,521.39

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Solution

The fourth proportional to 97,661.94, 134,765.33 and 90,521.39 is: 124,911.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,661.94 : 134,765.33 = 90,521.39 : x
  2. Step 2: Convert to fraction form
    97,661.94/134,765.33 = 90,521.39/x
  3. Step 3: Cross multiply
    97,661.94x = 134,765.33 × 90,521.39
  4. Step 4: Simplify right side
    97,661.94x = 12,199,144,208.43
  5. Step 5: Solve for x
    x = 12,199,144,208.43/97,661.94
  6. Step 6: Final answer
    x = 124,911.96

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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.