Home / 136,152.84-187,887.64-74,061.72

Finding the Fourth Proportional to 136,152.84, 187,887.64 and 74,061.72

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Solution

The fourth proportional to 136,152.84, 187,887.64 and 74,061.72 is: 102,203.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,152.84 : 187,887.64 = 74,061.72 : x
  2. Step 2: Convert to fraction form
    136,152.84/187,887.64 = 74,061.72/x
  3. Step 3: Cross multiply
    136,152.84x = 187,887.64 × 74,061.72
  4. Step 4: Simplify right side
    136,152.84x = 13,915,281,785.14
  5. Step 5: Solve for x
    x = 13,915,281,785.14/136,152.84
  6. Step 6: Final answer
    x = 102,203.39

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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.