Home / 135,641.42-187,177.53-75,208.46

Finding the Fourth Proportional to 135,641.42, 187,177.53 and 75,208.46

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Solution

The fourth proportional to 135,641.42, 187,177.53 and 75,208.46 is: 103,783.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,641.42 : 187,177.53 = 75,208.46 : x
  2. Step 2: Convert to fraction form
    135,641.42/187,177.53 = 75,208.46/x
  3. Step 3: Cross multiply
    135,641.42x = 187,177.53 × 75,208.46
  4. Step 4: Simplify right side
    135,641.42x = 14,077,333,777.90
  5. Step 5: Solve for x
    x = 14,077,333,777.90/135,641.42
  6. Step 6: Final answer
    x = 103,783.44

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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.