Home / 105,213.35-157,856.93-54,588.03

Finding the Fourth Proportional to 105,213.35, 157,856.93 and 54,588.03

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Solution

The fourth proportional to 105,213.35, 157,856.93 and 54,588.03 is: 81,901.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,213.35 : 157,856.93 = 54,588.03 : x
  2. Step 2: Convert to fraction form
    105,213.35/157,856.93 = 54,588.03/x
  3. Step 3: Cross multiply
    105,213.35x = 157,856.93 × 54,588.03
  4. Step 4: Simplify right side
    105,213.35x = 8,617,098,557.61
  5. Step 5: Solve for x
    x = 8,617,098,557.61/105,213.35
  6. Step 6: Final answer
    x = 81,901.19

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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.