Home / 136,941.42-188,977.86-76,522.47

Finding the Fourth Proportional to 136,941.42, 188,977.86 and 76,522.47

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Solution

The fourth proportional to 136,941.42, 188,977.86 and 76,522.47 is: 105,600.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,941.42 : 188,977.86 = 76,522.47 : x
  2. Step 2: Convert to fraction form
    136,941.42/188,977.86 = 76,522.47/x
  3. Step 3: Cross multiply
    136,941.42x = 188,977.86 × 76,522.47
  4. Step 4: Simplify right side
    136,941.42x = 14,461,052,622.51
  5. Step 5: Solve for x
    x = 14,461,052,622.51/136,941.42
  6. Step 6: Final answer
    x = 105,600.28

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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.