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Finding the Fourth Proportional to 71,570.90, 100,337.50 and 71,570.90

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Solution

The fourth proportional to 71,570.90, 100,337.50 and 71,570.90 is: 100,337.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,570.90 : 100,337.50 = 71,570.90 : x
  2. Step 2: Convert to fraction form
    71,570.90/100,337.50 = 71,570.90/x
  3. Step 3: Cross multiply
    71,570.90x = 100,337.50 × 71,570.90
  4. Step 4: Simplify right side
    71,570.90x = 7,181,245,178.75
  5. Step 5: Solve for x
    x = 7,181,245,178.75/71,570.90
  6. Step 6: Final answer
    x = 100,337.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.