Home / 104,531.72-144,248.31-56,784.92

Finding the Fourth Proportional to 104,531.72, 144,248.31 and 56,784.92

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Solution

The fourth proportional to 104,531.72, 144,248.31 and 56,784.92 is: 78,360.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,531.72 : 144,248.31 = 56,784.92 : x
  2. Step 2: Convert to fraction form
    104,531.72/144,248.31 = 56,784.92/x
  3. Step 3: Cross multiply
    104,531.72x = 144,248.31 × 56,784.92
  4. Step 4: Simplify right side
    104,531.72x = 8,191,128,022.24
  5. Step 5: Solve for x
    x = 8,191,128,022.24/104,531.72
  6. Step 6: Final answer
    x = 78,360.22

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.