Home / 136,962.49-189,007.82-76,533.19

Finding the Fourth Proportional to 136,962.49, 189,007.82 and 76,533.19

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Solution

The fourth proportional to 136,962.49, 189,007.82 and 76,533.19 is: 105,615.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,962.49 : 189,007.82 = 76,533.19 : x
  2. Step 2: Convert to fraction form
    136,962.49/189,007.82 = 76,533.19/x
  3. Step 3: Cross multiply
    136,962.49x = 189,007.82 × 76,533.19
  4. Step 4: Simplify right side
    136,962.49x = 14,465,371,894.53
  5. Step 5: Solve for x
    x = 14,465,371,894.53/136,962.49
  6. Step 6: Final answer
    x = 105,615.57

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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.