Home / 157,565.07-217,442.75-85,947.65

Finding the Fourth Proportional to 157,565.07, 217,442.75 and 85,947.65

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Solution

The fourth proportional to 157,565.07, 217,442.75 and 85,947.65 is: 118,609.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,565.07 : 217,442.75 = 85,947.65 : x
  2. Step 2: Convert to fraction form
    157,565.07/217,442.75 = 85,947.65/x
  3. Step 3: Cross multiply
    157,565.07x = 217,442.75 × 85,947.65
  4. Step 4: Simplify right side
    157,565.07x = 18,688,691,855.09
  5. Step 5: Solve for x
    x = 18,688,691,855.09/157,565.07
  6. Step 6: Final answer
    x = 118,609.36

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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.