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Finding the Fourth Proportional to 151,695.25, 209,339.54 and 84,627.25

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Solution

The fourth proportional to 151,695.25, 209,339.54 and 84,627.25 is: 116,785.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,695.25 : 209,339.54 = 84,627.25 : x
  2. Step 2: Convert to fraction form
    151,695.25/209,339.54 = 84,627.25/x
  3. Step 3: Cross multiply
    151,695.25x = 209,339.54 × 84,627.25
  4. Step 4: Simplify right side
    151,695.25x = 17,715,829,586.47
  5. Step 5: Solve for x
    x = 17,715,829,586.47/151,695.25
  6. Step 6: Final answer
    x = 116,785.66

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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.