Home / 145,981.77-201,474.17-85,576.15

Finding the Fourth Proportional to 145,981.77, 201,474.17 and 85,576.15

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Solution

The fourth proportional to 145,981.77, 201,474.17 and 85,576.15 is: 118,106.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,981.77 : 201,474.17 = 85,576.15 : x
  2. Step 2: Convert to fraction form
    145,981.77/201,474.17 = 85,576.15/x
  3. Step 3: Cross multiply
    145,981.77x = 201,474.17 × 85,576.15
  4. Step 4: Simplify right side
    145,981.77x = 17,241,383,793.05
  5. Step 5: Solve for x
    x = 17,241,383,793.05/145,981.77
  6. Step 6: Final answer
    x = 118,106.42

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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.