Home / 105,264.19-145,264.62-56,866.14

Finding the Fourth Proportional to 105,264.19, 145,264.62 and 56,866.14

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Solution

The fourth proportional to 105,264.19, 145,264.62 and 56,866.14 is: 78,475.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,264.19 : 145,264.62 = 56,866.14 : x
  2. Step 2: Convert to fraction form
    105,264.19/145,264.62 = 56,866.14/x
  3. Step 3: Cross multiply
    105,264.19x = 145,264.62 × 56,866.14
  4. Step 4: Simplify right side
    105,264.19x = 8,260,638,217.97
  5. Step 5: Solve for x
    x = 8,260,638,217.97/105,264.19
  6. Step 6: Final answer
    x = 78,475.29

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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.