Home / 105,705.08-145,871.92-57,958.35

Finding the Fourth Proportional to 105,705.08, 145,871.92 and 57,958.35

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Solution

The fourth proportional to 105,705.08, 145,871.92 and 57,958.35 is: 79,981.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,705.08 : 145,871.92 = 57,958.35 : x
  2. Step 2: Convert to fraction form
    105,705.08/145,871.92 = 57,958.35/x
  3. Step 3: Cross multiply
    105,705.08x = 145,871.92 × 57,958.35
  4. Step 4: Simplify right side
    105,705.08x = 8,454,495,794.53
  5. Step 5: Solve for x
    x = 8,454,495,794.53/105,705.08
  6. Step 6: Final answer
    x = 79,981.93

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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.