Home / 189,881.22-262,035.43-107,088.66

Finding the Fourth Proportional to 189,881.22, 262,035.43 and 107,088.66

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Solution

The fourth proportional to 189,881.22, 262,035.43 and 107,088.66 is: 147,781.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,881.22 : 262,035.43 = 107,088.66 : x
  2. Step 2: Convert to fraction form
    189,881.22/262,035.43 = 107,088.66/x
  3. Step 3: Cross multiply
    189,881.22x = 262,035.43 × 107,088.66
  4. Step 4: Simplify right side
    189,881.22x = 28,061,023,071.22
  5. Step 5: Solve for x
    x = 28,061,023,071.22/189,881.22
  6. Step 6: Final answer
    x = 147,781.98

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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.