Home / 90,635.60-135,953.40-69,616.10

Finding the Fourth Proportional to 90,635.60, 135,953.40 and 69,616.10

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Solution

The fourth proportional to 90,635.60, 135,953.40 and 69,616.10 is: 104,424.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,635.60 : 135,953.40 = 69,616.10 : x
  2. Step 2: Convert to fraction form
    90,635.60/135,953.40 = 69,616.10/x
  3. Step 3: Cross multiply
    90,635.60x = 135,953.40 × 69,616.10
  4. Step 4: Simplify right side
    90,635.60x = 9,464,545,489.74
  5. Step 5: Solve for x
    x = 9,464,545,489.74/90,635.60
  6. Step 6: Final answer
    x = 104,424.15

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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.