Home / 131,275.80-196,913.70-64,747.80

Finding the Fourth Proportional to 131,275.80, 196,913.70 and 64,747.80

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Solution

The fourth proportional to 131,275.80, 196,913.70 and 64,747.80 is: 97,121.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,275.80 : 196,913.70 = 64,747.80 : x
  2. Step 2: Convert to fraction form
    131,275.80/196,913.70 = 64,747.80/x
  3. Step 3: Cross multiply
    131,275.80x = 196,913.70 × 64,747.80
  4. Step 4: Simplify right side
    131,275.80x = 12,749,728,864.86
  5. Step 5: Solve for x
    x = 12,749,728,864.86/131,275.80
  6. Step 6: Final answer
    x = 97,121.70

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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.