Home / 166,840.81-230,239.15-90,358.18

Finding the Fourth Proportional to 166,840.81, 230,239.15 and 90,358.18

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Solution

The fourth proportional to 166,840.81, 230,239.15 and 90,358.18 is: 124,693.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,840.81 : 230,239.15 = 90,358.18 : x
  2. Step 2: Convert to fraction form
    166,840.81/230,239.15 = 90,358.18/x
  3. Step 3: Cross multiply
    166,840.81x = 230,239.15 × 90,358.18
  4. Step 4: Simplify right side
    166,840.81x = 20,803,989,757.25
  5. Step 5: Solve for x
    x = 20,803,989,757.25/166,840.81
  6. Step 6: Final answer
    x = 124,693.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.