Home / 121,899.42-168,153.48-70,906.41

Finding the Fourth Proportional to 121,899.42, 168,153.48 and 70,906.41

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Solution

The fourth proportional to 121,899.42, 168,153.48 and 70,906.41 is: 97,811.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,899.42 : 168,153.48 = 70,906.41 : x
  2. Step 2: Convert to fraction form
    121,899.42/168,153.48 = 70,906.41/x
  3. Step 3: Cross multiply
    121,899.42x = 168,153.48 × 70,906.41
  4. Step 4: Simplify right side
    121,899.42x = 11,923,159,595.81
  5. Step 5: Solve for x
    x = 11,923,159,595.81/121,899.42
  6. Step 6: Final answer
    x = 97,811.45

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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.