Home / 104,319.36-143,959.43-56,572.16

Finding the Fourth Proportional to 104,319.36, 143,959.43 and 56,572.16

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Solution

The fourth proportional to 104,319.36, 143,959.43 and 56,572.16 is: 78,068.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,319.36 : 143,959.43 = 56,572.16 : x
  2. Step 2: Convert to fraction form
    104,319.36/143,959.43 = 56,572.16/x
  3. Step 3: Cross multiply
    104,319.36x = 143,959.43 × 56,572.16
  4. Step 4: Simplify right side
    104,319.36x = 8,144,095,329.10
  5. Step 5: Solve for x
    x = 8,144,095,329.10/104,319.36
  6. Step 6: Final answer
    x = 78,068.88

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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.