Home / 135,818.42-187,409.52-75,389.58

Finding the Fourth Proportional to 135,818.42, 187,409.52 and 75,389.58

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Solution

The fourth proportional to 135,818.42, 187,409.52 and 75,389.58 is: 104,026.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,818.42 : 187,409.52 = 75,389.58 : x
  2. Step 2: Convert to fraction form
    135,818.42/187,409.52 = 75,389.58/x
  3. Step 3: Cross multiply
    135,818.42x = 187,409.52 × 75,389.58
  4. Step 4: Simplify right side
    135,818.42x = 14,128,725,000.80
  5. Step 5: Solve for x
    x = 14,128,725,000.80/135,818.42
  6. Step 6: Final answer
    x = 104,026.58

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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.