Home / 135,746.70-187,321.53-75,317.18

Finding the Fourth Proportional to 135,746.70, 187,321.53 and 75,317.18

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Solution

The fourth proportional to 135,746.70, 187,321.53 and 75,317.18 is: 103,932.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,746.70 : 187,321.53 = 75,317.18 : x
  2. Step 2: Convert to fraction form
    135,746.70/187,321.53 = 75,317.18/x
  3. Step 3: Cross multiply
    135,746.70x = 187,321.53 × 75,317.18
  4. Step 4: Simplify right side
    135,746.70x = 14,108,529,392.89
  5. Step 5: Solve for x
    x = 14,108,529,392.89/135,746.70
  6. Step 6: Final answer
    x = 103,932.76

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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.