Home / 153,926.47-212,416.52-85,944.61

Finding the Fourth Proportional to 153,926.47, 212,416.52 and 85,944.61

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Solution

The fourth proportional to 153,926.47, 212,416.52 and 85,944.61 is: 118,602.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,926.47 : 212,416.52 = 85,944.61 : x
  2. Step 2: Convert to fraction form
    153,926.47/212,416.52 = 85,944.61/x
  3. Step 3: Cross multiply
    153,926.47x = 212,416.52 × 85,944.61
  4. Step 4: Simplify right side
    153,926.47x = 18,256,053,906.87
  5. Step 5: Solve for x
    x = 18,256,053,906.87/153,926.47
  6. Step 6: Final answer
    x = 118,602.44

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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.