Home / 157,388.56-217,196.02-85,768.55

Finding the Fourth Proportional to 157,388.56, 217,196.02 and 85,768.55

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Solution

The fourth proportional to 157,388.56, 217,196.02 and 85,768.55 is: 118,360.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,388.56 : 217,196.02 = 85,768.55 : x
  2. Step 2: Convert to fraction form
    157,388.56/217,196.02 = 85,768.55/x
  3. Step 3: Cross multiply
    157,388.56x = 217,196.02 × 85,768.55
  4. Step 4: Simplify right side
    157,388.56x = 18,628,587,701.17
  5. Step 5: Solve for x
    x = 18,628,587,701.17/157,388.56
  6. Step 6: Final answer
    x = 118,360.49

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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.