Home / 157,455.12-217,292.83-85,836.34

Finding the Fourth Proportional to 157,455.12, 217,292.83 and 85,836.34

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Solution

The fourth proportional to 157,455.12, 217,292.83 and 85,836.34 is: 118,456.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,455.12 : 217,292.83 = 85,836.34 : x
  2. Step 2: Convert to fraction form
    157,455.12/217,292.83 = 85,836.34/x
  3. Step 3: Cross multiply
    157,455.12x = 217,292.83 × 85,836.34
  4. Step 4: Simplify right side
    157,455.12x = 18,651,621,292.47
  5. Step 5: Solve for x
    x = 18,651,621,292.47/157,455.12
  6. Step 6: Final answer
    x = 118,456.74

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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.