Home / 136,927.42-188,957.70-76,498.90

Finding the Fourth Proportional to 136,927.42, 188,957.70 and 76,498.90

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Solution

The fourth proportional to 136,927.42, 188,957.70 and 76,498.90 is: 105,567.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,927.42 : 188,957.70 = 76,498.90 : x
  2. Step 2: Convert to fraction form
    136,927.42/188,957.70 = 76,498.90/x
  3. Step 3: Cross multiply
    136,927.42x = 188,957.70 × 76,498.90
  4. Step 4: Simplify right side
    136,927.42x = 14,455,056,196.53
  5. Step 5: Solve for x
    x = 14,455,056,196.53/136,927.42
  6. Step 6: Final answer
    x = 105,567.29

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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.