Home / 136,733.08-188,639.04-85,656.92

Finding the Fourth Proportional to 136,733.08, 188,639.04 and 85,656.92

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Solution

The fourth proportional to 136,733.08, 188,639.04 and 85,656.92 is: 118,173.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,733.08 : 188,639.04 = 85,656.92 : x
  2. Step 2: Convert to fraction form
    136,733.08/188,639.04 = 85,656.92/x
  3. Step 3: Cross multiply
    136,733.08x = 188,639.04 × 85,656.92
  4. Step 4: Simplify right side
    136,733.08x = 16,158,239,158.16
  5. Step 5: Solve for x
    x = 16,158,239,158.16/136,733.08
  6. Step 6: Final answer
    x = 118,173.59

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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.