Home / 121,901.42-168,156.24-70,908.41

Finding the Fourth Proportional to 121,901.42, 168,156.24 and 70,908.41

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Solution

The fourth proportional to 121,901.42, 168,156.24 and 70,908.41 is: 97,814.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,901.42 : 168,156.24 = 70,908.41 : x
  2. Step 2: Convert to fraction form
    121,901.42/168,156.24 = 70,908.41/x
  3. Step 3: Cross multiply
    121,901.42x = 168,156.24 × 70,908.41
  4. Step 4: Simplify right side
    121,901.42x = 11,923,691,609.98
  5. Step 5: Solve for x
    x = 11,923,691,609.98/121,901.42
  6. Step 6: Final answer
    x = 97,814.21

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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.