Home / 157,378.96-217,176.15-89,395.72

Finding the Fourth Proportional to 157,378.96, 217,176.15 and 89,395.72

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Solution

The fourth proportional to 157,378.96, 217,176.15 and 89,395.72 is: 123,362.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,378.96 : 217,176.15 = 89,395.72 : x
  2. Step 2: Convert to fraction form
    157,378.96/217,176.15 = 89,395.72/x
  3. Step 3: Cross multiply
    157,378.96x = 217,176.15 × 89,395.72
  4. Step 4: Simplify right side
    157,378.96x = 19,414,618,296.08
  5. Step 5: Solve for x
    x = 19,414,618,296.08/157,378.96
  6. Step 6: Final answer
    x = 123,362.22

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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.