Home / 131,244.75-181,117.76-71,628.75

Finding the Fourth Proportional to 131,244.75, 181,117.76 and 71,628.75

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Solution

The fourth proportional to 131,244.75, 181,117.76 and 71,628.75 is: 98,847.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,244.75 : 181,117.76 = 71,628.75 : x
  2. Step 2: Convert to fraction form
    131,244.75/181,117.76 = 71,628.75/x
  3. Step 3: Cross multiply
    131,244.75x = 181,117.76 × 71,628.75
  4. Step 4: Simplify right side
    131,244.75x = 12,973,238,393.46
  5. Step 5: Solve for x
    x = 12,973,238,393.46/131,244.75
  6. Step 6: Final answer
    x = 98,847.68

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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.