Home / 102,749.55-154,062.80-42,705.62

Finding the Fourth Proportional to 102,749.55, 154,062.80 and 42,705.62

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Solution

The fourth proportional to 102,749.55, 154,062.80 and 42,705.62 is: 64,032.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,749.55 : 154,062.80 = 42,705.62 : x
  2. Step 2: Convert to fraction form
    102,749.55/154,062.80 = 42,705.62/x
  3. Step 3: Cross multiply
    102,749.55x = 154,062.80 × 42,705.62
  4. Step 4: Simplify right side
    102,749.55x = 6,579,347,392.94
  5. Step 5: Solve for x
    x = 6,579,347,392.94/102,749.55
  6. Step 6: Final answer
    x = 64,032.86

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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.