Home / 104,068.89-143,581.55-63,740.61

Finding the Fourth Proportional to 104,068.89, 143,581.55 and 63,740.61

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Solution

The fourth proportional to 104,068.89, 143,581.55 and 63,740.61 is: 87,941.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,068.89 : 143,581.55 = 63,740.61 : x
  2. Step 2: Convert to fraction form
    104,068.89/143,581.55 = 63,740.61/x
  3. Step 3: Cross multiply
    104,068.89x = 143,581.55 × 63,740.61
  4. Step 4: Simplify right side
    104,068.89x = 9,151,975,263.04
  5. Step 5: Solve for x
    x = 9,151,975,263.04/104,068.89
  6. Step 6: Final answer
    x = 87,941.51

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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.