Home / 105,463.79-158,011.19-87,807.92

Finding the Fourth Proportional to 105,463.79, 158,011.19 and 87,807.92

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Solution

The fourth proportional to 105,463.79, 158,011.19 and 87,807.92 is: 131,558.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,463.79 : 158,011.19 = 87,807.92 : x
  2. Step 2: Convert to fraction form
    105,463.79/158,011.19 = 87,807.92/x
  3. Step 3: Cross multiply
    105,463.79x = 158,011.19 × 87,807.92
  4. Step 4: Simplify right side
    105,463.79x = 13,874,633,030.81
  5. Step 5: Solve for x
    x = 13,874,633,030.81/105,463.79
  6. Step 6: Final answer
    x = 131,558.26

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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.