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Finding the Fourth Proportional to 134,106.83, 185,020.89 and 85,737.07

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Solution

The fourth proportional to 134,106.83, 185,020.89 and 85,737.07 is: 118,287.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,106.83 : 185,020.89 = 85,737.07 : x
  2. Step 2: Convert to fraction form
    134,106.83/185,020.89 = 85,737.07/x
  3. Step 3: Cross multiply
    134,106.83x = 185,020.89 × 85,737.07
  4. Step 4: Simplify right side
    134,106.83x = 15,863,148,997.39
  5. Step 5: Solve for x
    x = 15,863,148,997.39/134,106.83
  6. Step 6: Final answer
    x = 118,287.41

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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.