Home / 105,005.87-157,480.55-38,446.35

Finding the Fourth Proportional to 105,005.87, 157,480.55 and 38,446.35

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Solution

The fourth proportional to 105,005.87, 157,480.55 and 38,446.35 is: 57,659.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,005.87 : 157,480.55 = 38,446.35 : x
  2. Step 2: Convert to fraction form
    105,005.87/157,480.55 = 38,446.35/x
  3. Step 3: Cross multiply
    105,005.87x = 157,480.55 × 38,446.35
  4. Step 4: Simplify right side
    105,005.87x = 6,054,551,921.14
  5. Step 5: Solve for x
    x = 6,054,551,921.14/105,005.87
  6. Step 6: Final answer
    x = 57,659.18

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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.