Home / 136,146.03-187,870.64-75,716.79

Finding the Fourth Proportional to 136,146.03, 187,870.64 and 75,716.79

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Solution

The fourth proportional to 136,146.03, 187,870.64 and 75,716.79 is: 104,483.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,146.03 : 187,870.64 = 75,716.79 : x
  2. Step 2: Convert to fraction form
    136,146.03/187,870.64 = 75,716.79/x
  3. Step 3: Cross multiply
    136,146.03x = 187,870.64 × 75,716.79
  4. Step 4: Simplify right side
    136,146.03x = 14,224,961,417.46
  5. Step 5: Solve for x
    x = 14,224,961,417.46/136,146.03
  6. Step 6: Final answer
    x = 104,483.12

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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.