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Finding the Fourth Proportional to 87,466.90, 131,200.35 and 69,970.90

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Solution

The fourth proportional to 87,466.90, 131,200.35 and 69,970.90 is: 104,956.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,466.90 : 131,200.35 = 69,970.90 : x
  2. Step 2: Convert to fraction form
    87,466.90/131,200.35 = 69,970.90/x
  3. Step 3: Cross multiply
    87,466.90x = 131,200.35 × 69,970.90
  4. Step 4: Simplify right side
    87,466.90x = 9,180,206,569.82
  5. Step 5: Solve for x
    x = 9,180,206,569.82/87,466.90
  6. Step 6: Final answer
    x = 104,956.35

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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.