Home / 105,107.63-157,732.52-45,909.18

Finding the Fourth Proportional to 105,107.63, 157,732.52 and 45,909.18

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Solution

The fourth proportional to 105,107.63, 157,732.52 and 45,909.18 is: 68,894.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,107.63 : 157,732.52 = 45,909.18 : x
  2. Step 2: Convert to fraction form
    105,107.63/157,732.52 = 45,909.18/x
  3. Step 3: Cross multiply
    105,107.63x = 157,732.52 × 45,909.18
  4. Step 4: Simplify right side
    105,107.63x = 7,241,370,422.99
  5. Step 5: Solve for x
    x = 7,241,370,422.99/105,107.63
  6. Step 6: Final answer
    x = 68,894.82

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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.