Home / 105,242.24-157,863.36-42,917.60

Finding the Fourth Proportional to 105,242.24, 157,863.36 and 42,917.60

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Solution

The fourth proportional to 105,242.24, 157,863.36 and 42,917.60 is: 64,376.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,242.24 : 157,863.36 = 42,917.60 : x
  2. Step 2: Convert to fraction form
    105,242.24/157,863.36 = 42,917.60/x
  3. Step 3: Cross multiply
    105,242.24x = 157,863.36 × 42,917.60
  4. Step 4: Simplify right side
    105,242.24x = 6,775,116,539.14
  5. Step 5: Solve for x
    x = 6,775,116,539.14/105,242.24
  6. Step 6: Final answer
    x = 64,376.40

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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.