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Finding the Fourth Proportional to 104,586.23, 144,328.86 and 56,839.47

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Solution

The fourth proportional to 104,586.23, 144,328.86 and 56,839.47 is: 78,438.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,586.23 : 144,328.86 = 56,839.47 : x
  2. Step 2: Convert to fraction form
    104,586.23/144,328.86 = 56,839.47/x
  3. Step 3: Cross multiply
    104,586.23x = 144,328.86 × 56,839.47
  4. Step 4: Simplify right side
    104,586.23x = 8,203,575,908.10
  5. Step 5: Solve for x
    x = 8,203,575,908.10/104,586.23
  6. Step 6: Final answer
    x = 78,438.40

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