Home / 105,285.20-157,944.20-63,155.38

Finding the Fourth Proportional to 105,285.20, 157,944.20 and 63,155.38

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Solution

The fourth proportional to 105,285.20, 157,944.20 and 63,155.38 is: 94,742.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,285.20 : 157,944.20 = 63,155.38 : x
  2. Step 2: Convert to fraction form
    105,285.20/157,944.20 = 63,155.38/x
  3. Step 3: Cross multiply
    105,285.20x = 157,944.20 × 63,155.38
  4. Step 4: Simplify right side
    105,285.20x = 9,975,025,259.16
  5. Step 5: Solve for x
    x = 9,975,025,259.16/105,285.20
  6. Step 6: Final answer
    x = 94,742.91

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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.