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Finding the Fourth Proportional to 91,610.40, 137,415.60 and 91,610.40

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Solution

The fourth proportional to 91,610.40, 137,415.60 and 91,610.40 is: 137,415.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,610.40 : 137,415.60 = 91,610.40 : x
  2. Step 2: Convert to fraction form
    91,610.40/137,415.60 = 91,610.40/x
  3. Step 3: Cross multiply
    91,610.40x = 137,415.60 × 91,610.40
  4. Step 4: Simplify right side
    91,610.40x = 12,588,698,082.24
  5. Step 5: Solve for x
    x = 12,588,698,082.24/91,610.40
  6. Step 6: Final answer
    x = 137,415.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.