Home / 105,244.24-157,866.36-42,919.60

Finding the Fourth Proportional to 105,244.24, 157,866.36 and 42,919.60

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Solution

The fourth proportional to 105,244.24, 157,866.36 and 42,919.60 is: 64,379.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,244.24 : 157,866.36 = 42,919.60 : x
  2. Step 2: Convert to fraction form
    105,244.24/157,866.36 = 42,919.60/x
  3. Step 3: Cross multiply
    105,244.24x = 157,866.36 × 42,919.60
  4. Step 4: Simplify right side
    105,244.24x = 6,775,561,024.66
  5. Step 5: Solve for x
    x = 6,775,561,024.66/105,244.24
  6. Step 6: Final answer
    x = 64,379.40

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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.