Home / 136,526.50-188,407.47-76,100.97

Finding the Fourth Proportional to 136,526.50, 188,407.47 and 76,100.97

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Solution

The fourth proportional to 136,526.50, 188,407.47 and 76,100.97 is: 105,019.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,526.50 : 188,407.47 = 76,100.97 : x
  2. Step 2: Convert to fraction form
    136,526.50/188,407.47 = 76,100.97/x
  3. Step 3: Cross multiply
    136,526.50x = 188,407.47 × 76,100.97
  4. Step 4: Simplify right side
    136,526.50x = 14,337,991,222.25
  5. Step 5: Solve for x
    x = 14,337,991,222.25/136,526.50
  6. Step 6: Final answer
    x = 105,019.84

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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.