Home / 85,516.10-128,274.15-73,852.10

Finding the Fourth Proportional to 85,516.10, 128,274.15 and 73,852.10

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Solution

The fourth proportional to 85,516.10, 128,274.15 and 73,852.10 is: 110,778.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,516.10 : 128,274.15 = 73,852.10 : x
  2. Step 2: Convert to fraction form
    85,516.10/128,274.15 = 73,852.10/x
  3. Step 3: Cross multiply
    85,516.10x = 128,274.15 × 73,852.10
  4. Step 4: Simplify right side
    85,516.10x = 9,473,315,353.22
  5. Step 5: Solve for x
    x = 9,473,315,353.22/85,516.10
  6. Step 6: Final answer
    x = 110,778.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.