Home / 136,933.34-188,967.12-76,503.53

Finding the Fourth Proportional to 136,933.34, 188,967.12 and 76,503.53

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Solution

The fourth proportional to 136,933.34, 188,967.12 and 76,503.53 is: 105,574.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,933.34 : 188,967.12 = 76,503.53 : x
  2. Step 2: Convert to fraction form
    136,933.34/188,967.12 = 76,503.53/x
  3. Step 3: Cross multiply
    136,933.34x = 188,967.12 × 76,503.53
  4. Step 4: Simplify right side
    136,933.34x = 14,456,651,733.93
  5. Step 5: Solve for x
    x = 14,456,651,733.93/136,933.34
  6. Step 6: Final answer
    x = 105,574.37

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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.