Home / 105,029.28-157,543.62-26,143.50

Finding the Fourth Proportional to 105,029.28, 157,543.62 and 26,143.50

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Solution

The fourth proportional to 105,029.28, 157,543.62 and 26,143.50 is: 39,215.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,029.28 : 157,543.62 = 26,143.50 : x
  2. Step 2: Convert to fraction form
    105,029.28/157,543.62 = 26,143.50/x
  3. Step 3: Cross multiply
    105,029.28x = 157,543.62 × 26,143.50
  4. Step 4: Simplify right side
    105,029.28x = 4,118,741,629.47
  5. Step 5: Solve for x
    x = 4,118,741,629.47/105,029.28
  6. Step 6: Final answer
    x = 39,215.18

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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.