Home / 105,032.19-157,487.79-45,839.55

Finding the Fourth Proportional to 105,032.19, 157,487.79 and 45,839.55

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Solution

The fourth proportional to 105,032.19, 157,487.79 and 45,839.55 is: 68,732.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,032.19 : 157,487.79 = 45,839.55 : x
  2. Step 2: Convert to fraction form
    105,032.19/157,487.79 = 45,839.55/x
  3. Step 3: Cross multiply
    105,032.19x = 157,487.79 × 45,839.55
  4. Step 4: Simplify right side
    105,032.19x = 7,219,169,424.09
  5. Step 5: Solve for x
    x = 7,219,169,424.09/105,032.19
  6. Step 6: Final answer
    x = 68,732.92

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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.