Home / 123,505.32-170,437.38-66,916.71

Finding the Fourth Proportional to 123,505.32, 170,437.38 and 66,916.71

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Solution

The fourth proportional to 123,505.32, 170,437.38 and 66,916.71 is: 92,345.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,505.32 : 170,437.38 = 66,916.71 : x
  2. Step 2: Convert to fraction form
    123,505.32/170,437.38 = 66,916.71/x
  3. Step 3: Cross multiply
    123,505.32x = 170,437.38 × 66,916.71
  4. Step 4: Simplify right side
    123,505.32x = 11,405,108,730.62
  5. Step 5: Solve for x
    x = 11,405,108,730.62/123,505.32
  6. Step 6: Final answer
    x = 92,345.08

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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.