Home / 136,415.77-188,228.81-75,984.87

Finding the Fourth Proportional to 136,415.77, 188,228.81 and 75,984.87

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Solution

The fourth proportional to 136,415.77, 188,228.81 and 75,984.87 is: 104,845.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,415.77 : 188,228.81 = 75,984.87 : x
  2. Step 2: Convert to fraction form
    136,415.77/188,228.81 = 75,984.87/x
  3. Step 3: Cross multiply
    136,415.77x = 188,228.81 × 75,984.87
  4. Step 4: Simplify right side
    136,415.77x = 14,302,541,658.10
  5. Step 5: Solve for x
    x = 14,302,541,658.10/136,415.77
  6. Step 6: Final answer
    x = 104,845.22

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1.5x scale

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.