Home / 104,459.20-144,153.12-56,712.16

Finding the Fourth Proportional to 104,459.20, 144,153.12 and 56,712.16

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Solution

The fourth proportional to 104,459.20, 144,153.12 and 56,712.16 is: 78,262.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,459.20 : 144,153.12 = 56,712.16 : x
  2. Step 2: Convert to fraction form
    104,459.20/144,153.12 = 56,712.16/x
  3. Step 3: Cross multiply
    104,459.20x = 144,153.12 × 56,712.16
  4. Step 4: Simplify right side
    104,459.20x = 8,175,234,805.94
  5. Step 5: Solve for x
    x = 8,175,234,805.94/104,459.20
  6. Step 6: Final answer
    x = 78,262.47

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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.