Home / 136,664.15-188,684.33-85,746.74

Finding the Fourth Proportional to 136,664.15, 188,684.33 and 85,746.74

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Solution

The fourth proportional to 136,664.15, 188,684.33 and 85,746.74 is: 118,385.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,664.15 : 188,684.33 = 85,746.74 : x
  2. Step 2: Convert to fraction form
    136,664.15/188,684.33 = 85,746.74/x
  3. Step 3: Cross multiply
    136,664.15x = 188,684.33 × 85,746.74
  4. Step 4: Simplify right side
    136,664.15x = 16,179,064,814.43
  5. Step 5: Solve for x
    x = 16,179,064,814.43/136,664.15
  6. Step 6: Final answer
    x = 118,385.59

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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.