Home / 135,612.64-187,156.53-75,202.23

Finding the Fourth Proportional to 135,612.64, 187,156.53 and 75,202.23

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Solution

The fourth proportional to 135,612.64, 187,156.53 and 75,202.23 is: 103,785.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,612.64 : 187,156.53 = 75,202.23 : x
  2. Step 2: Convert to fraction form
    135,612.64/187,156.53 = 75,202.23/x
  3. Step 3: Cross multiply
    135,612.64x = 187,156.53 × 75,202.23
  4. Step 4: Simplify right side
    135,612.64x = 14,074,588,415.06
  5. Step 5: Solve for x
    x = 14,074,588,415.06/135,612.64
  6. Step 6: Final answer
    x = 103,785.23

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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.