Home / 136,887.93-188,903.32-76,459.42

Finding the Fourth Proportional to 136,887.93, 188,903.32 and 76,459.42

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Solution

The fourth proportional to 136,887.93, 188,903.32 and 76,459.42 is: 105,512.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,887.93 : 188,903.32 = 76,459.42 : x
  2. Step 2: Convert to fraction form
    136,887.93/188,903.32 = 76,459.42/x
  3. Step 3: Cross multiply
    136,887.93x = 188,903.32 × 76,459.42
  4. Step 4: Simplify right side
    136,887.93x = 14,443,438,283.27
  5. Step 5: Solve for x
    x = 14,443,438,283.27/136,887.93
  6. Step 6: Final answer
    x = 105,512.87

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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.