Home / 136,126.41-187,859.01-74,875.19

Finding the Fourth Proportional to 136,126.41, 187,859.01 and 74,875.19

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Solution

The fourth proportional to 136,126.41, 187,859.01 and 74,875.19 is: 103,330.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,126.41 : 187,859.01 = 74,875.19 : x
  2. Step 2: Convert to fraction form
    136,126.41/187,859.01 = 74,875.19/x
  3. Step 3: Cross multiply
    136,126.41x = 187,859.01 × 74,875.19
  4. Step 4: Simplify right side
    136,126.41x = 14,065,979,066.96
  5. Step 5: Solve for x
    x = 14,065,979,066.96/136,126.41
  6. Step 6: Final answer
    x = 103,330.27

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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.