Home / 105,700.64-145,846.35-62,672.18

Finding the Fourth Proportional to 105,700.64, 145,846.35 and 62,672.18

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Solution

The fourth proportional to 105,700.64, 145,846.35 and 62,672.18 is: 86,475.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,700.64 : 145,846.35 = 62,672.18 : x
  2. Step 2: Convert to fraction form
    105,700.64/145,846.35 = 62,672.18/x
  3. Step 3: Cross multiply
    105,700.64x = 145,846.35 × 62,672.18
  4. Step 4: Simplify right side
    105,700.64x = 9,140,508,699.54
  5. Step 5: Solve for x
    x = 9,140,508,699.54/105,700.64
  6. Step 6: Final answer
    x = 86,475.43

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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.