Home / 137,576.57-189,775.22-86,508.45

Finding the Fourth Proportional to 137,576.57, 189,775.22 and 86,508.45

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Solution

The fourth proportional to 137,576.57, 189,775.22 and 86,508.45 is: 119,331.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,576.57 : 189,775.22 = 86,508.45 : x
  2. Step 2: Convert to fraction form
    137,576.57/189,775.22 = 86,508.45/x
  3. Step 3: Cross multiply
    137,576.57x = 189,775.22 × 86,508.45
  4. Step 4: Simplify right side
    137,576.57x = 16,417,159,698.07
  5. Step 5: Solve for x
    x = 16,417,159,698.07/137,576.57
  6. Step 6: Final answer
    x = 119,331.08

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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.