Home / 121,920.19-182,886.41-38,820.67

Finding the Fourth Proportional to 121,920.19, 182,886.41 and 38,820.67

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Solution

The fourth proportional to 121,920.19, 182,886.41 and 38,820.67 is: 58,232.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,920.19 : 182,886.41 = 38,820.67 : x
  2. Step 2: Convert to fraction form
    121,920.19/182,886.41 = 38,820.67/x
  3. Step 3: Cross multiply
    121,920.19x = 182,886.41 × 38,820.67
  4. Step 4: Simplify right side
    121,920.19x = 7,099,772,970.09
  5. Step 5: Solve for x
    x = 7,099,772,970.09/121,920.19
  6. Step 6: Final answer
    x = 58,232.96

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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.