Home / 131,488.40-197,232.60-91,247.60

Finding the Fourth Proportional to 131,488.40, 197,232.60 and 91,247.60

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Solution

The fourth proportional to 131,488.40, 197,232.60 and 91,247.60 is: 136,871.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,488.40 : 197,232.60 = 91,247.60 : x
  2. Step 2: Convert to fraction form
    131,488.40/197,232.60 = 91,247.60/x
  3. Step 3: Cross multiply
    131,488.40x = 197,232.60 × 91,247.60
  4. Step 4: Simplify right side
    131,488.40x = 17,997,001,391.76
  5. Step 5: Solve for x
    x = 17,997,001,391.76/131,488.40
  6. Step 6: Final answer
    x = 136,871.40

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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.