Home / 120,781.60-181,895.77-110,007.88

Finding the Fourth Proportional to 120,781.60, 181,895.77 and 110,007.88

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Solution

The fourth proportional to 120,781.60, 181,895.77 and 110,007.88 is: 165,670.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,781.60 : 181,895.77 = 110,007.88 : x
  2. Step 2: Convert to fraction form
    120,781.60/181,895.77 = 110,007.88/x
  3. Step 3: Cross multiply
    120,781.60x = 181,895.77 × 110,007.88
  4. Step 4: Simplify right side
    120,781.60x = 20,009,968,038.67
  5. Step 5: Solve for x
    x = 20,009,968,038.67/120,781.60
  6. Step 6: Final answer
    x = 165,670.67

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.