Home / 157,768.17-217,720.06-86,148.24

Finding the Fourth Proportional to 157,768.17, 217,720.06 and 86,148.24

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Solution

The fourth proportional to 157,768.17, 217,720.06 and 86,148.24 is: 118,884.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,768.17 : 217,720.06 = 86,148.24 : x
  2. Step 2: Convert to fraction form
    157,768.17/217,720.06 = 86,148.24/x
  3. Step 3: Cross multiply
    157,768.17x = 217,720.06 × 86,148.24
  4. Step 4: Simplify right side
    157,768.17x = 18,756,199,766.32
  5. Step 5: Solve for x
    x = 18,756,199,766.32/157,768.17
  6. Step 6: Final answer
    x = 118,884.56

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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.