Home / 126,154.44-174,098.70-72,441.72

Finding the Fourth Proportional to 126,154.44, 174,098.70 and 72,441.72

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Solution

The fourth proportional to 126,154.44, 174,098.70 and 72,441.72 is: 99,972.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,154.44 : 174,098.70 = 72,441.72 : x
  2. Step 2: Convert to fraction form
    126,154.44/174,098.70 = 72,441.72/x
  3. Step 3: Cross multiply
    126,154.44x = 174,098.70 × 72,441.72
  4. Step 4: Simplify right side
    126,154.44x = 12,612,009,277.76
  5. Step 5: Solve for x
    x = 12,612,009,277.76/126,154.44
  6. Step 6: Final answer
    x = 99,972.77

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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.