Home / 136,111.51-187,837.14-75,684.70

Finding the Fourth Proportional to 136,111.51, 187,837.14 and 75,684.70

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Solution

The fourth proportional to 136,111.51, 187,837.14 and 75,684.70 is: 104,446.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,111.51 : 187,837.14 = 75,684.70 : x
  2. Step 2: Convert to fraction form
    136,111.51/187,837.14 = 75,684.70/x
  3. Step 3: Cross multiply
    136,111.51x = 187,837.14 × 75,684.70
  4. Step 4: Simplify right side
    136,111.51x = 14,216,397,589.76
  5. Step 5: Solve for x
    x = 14,216,397,589.76/136,111.51
  6. Step 6: Final answer
    x = 104,446.70

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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.