Home / 136,884.15-205,323.80-70,285.14

Finding the Fourth Proportional to 136,884.15, 205,323.80 and 70,285.14

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Solution

The fourth proportional to 136,884.15, 205,323.80 and 70,285.14 is: 105,426.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,884.15 : 205,323.80 = 70,285.14 : x
  2. Step 2: Convert to fraction form
    136,884.15/205,323.80 = 70,285.14/x
  3. Step 3: Cross multiply
    136,884.15x = 205,323.80 × 70,285.14
  4. Step 4: Simplify right side
    136,884.15x = 14,431,211,676.91
  5. Step 5: Solve for x
    x = 14,431,211,676.91/136,884.15
  6. Step 6: Final answer
    x = 105,426.46

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.