Home / 157,376.32-217,181.76-85,756.32

Finding the Fourth Proportional to 157,376.32, 217,181.76 and 85,756.32

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Solution

The fourth proportional to 157,376.32, 217,181.76 and 85,756.32 is: 118,345.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,376.32 : 217,181.76 = 85,756.32 : x
  2. Step 2: Convert to fraction form
    157,376.32/217,181.76 = 85,756.32/x
  3. Step 3: Cross multiply
    157,376.32x = 217,181.76 × 85,756.32
  4. Step 4: Simplify right side
    157,376.32x = 18,624,708,508.72
  5. Step 5: Solve for x
    x = 18,624,708,508.72/157,376.32
  6. Step 6: Final answer
    x = 118,345.05

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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.