Home / 135,887.49-187,529.58-75,459.15

Finding the Fourth Proportional to 135,887.49, 187,529.58 and 75,459.15

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Solution

The fourth proportional to 135,887.49, 187,529.58 and 75,459.15 is: 104,136.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,887.49 : 187,529.58 = 75,459.15 : x
  2. Step 2: Convert to fraction form
    135,887.49/187,529.58 = 75,459.15/x
  3. Step 3: Cross multiply
    135,887.49x = 187,529.58 × 75,459.15
  4. Step 4: Simplify right side
    135,887.49x = 14,150,822,706.66
  5. Step 5: Solve for x
    x = 14,150,822,706.66/135,887.49
  6. Step 6: Final answer
    x = 104,136.32

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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.