Home / 189,541.96-261,561.05-104,657.20

Finding the Fourth Proportional to 189,541.96, 261,561.05 and 104,657.20

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Solution

The fourth proportional to 189,541.96, 261,561.05 and 104,657.20 is: 144,423.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,541.96 : 261,561.05 = 104,657.20 : x
  2. Step 2: Convert to fraction form
    189,541.96/261,561.05 = 104,657.20/x
  3. Step 3: Cross multiply
    189,541.96x = 261,561.05 × 104,657.20
  4. Step 4: Simplify right side
    189,541.96x = 27,374,246,337.34
  5. Step 5: Solve for x
    x = 27,374,246,337.34/189,541.96
  6. Step 6: Final answer
    x = 144,423.15

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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.