Home / 90,358.37-135,430.02-68,098.35

Finding the Fourth Proportional to 90,358.37, 135,430.02 and 68,098.35

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Solution

The fourth proportional to 90,358.37, 135,430.02 and 68,098.35 is: 102,066.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,358.37 : 135,430.02 = 68,098.35 : x
  2. Step 2: Convert to fraction form
    90,358.37/135,430.02 = 68,098.35/x
  3. Step 3: Cross multiply
    90,358.37x = 135,430.02 × 68,098.35
  4. Step 4: Simplify right side
    90,358.37x = 9,222,560,902.47
  5. Step 5: Solve for x
    x = 9,222,560,902.47/90,358.37
  6. Step 6: Final answer
    x = 102,066.49

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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.