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Finding the Fourth Proportional to 104,737.17, 144,539.03 and 56,990.76

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Solution

The fourth proportional to 104,737.17, 144,539.03 and 56,990.76 is: 78,648.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,737.17 : 144,539.03 = 56,990.76 : x
  2. Step 2: Convert to fraction form
    104,737.17/144,539.03 = 56,990.76/x
  3. Step 3: Cross multiply
    104,737.17x = 144,539.03 × 56,990.76
  4. Step 4: Simplify right side
    104,737.17x = 8,237,388,884.41
  5. Step 5: Solve for x
    x = 8,237,388,884.41/104,737.17
  6. Step 6: Final answer
    x = 78,648.19

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1.5x scale

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.