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Finding the Fourth Proportional to 157,417.74, 217,230.12 and 85,796.22

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Solution

The fourth proportional to 157,417.74, 217,230.12 and 85,796.22 is: 118,395.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,417.74 : 217,230.12 = 85,796.22 : x
  2. Step 2: Convert to fraction form
    157,417.74/217,230.12 = 85,796.22/x
  3. Step 3: Cross multiply
    157,417.74x = 217,230.12 × 85,796.22
  4. Step 4: Simplify right side
    157,417.74x = 18,637,523,166.15
  5. Step 5: Solve for x
    x = 18,637,523,166.15/157,417.74
  6. Step 6: Final answer
    x = 118,395.32

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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.