Home / 116,423.20-174,634.80-85,319.20

Finding the Fourth Proportional to 116,423.20, 174,634.80 and 85,319.20

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Solution

The fourth proportional to 116,423.20, 174,634.80 and 85,319.20 is: 127,978.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,423.20 : 174,634.80 = 85,319.20 : x
  2. Step 2: Convert to fraction form
    116,423.20/174,634.80 = 85,319.20/x
  3. Step 3: Cross multiply
    116,423.20x = 174,634.80 × 85,319.20
  4. Step 4: Simplify right side
    116,423.20x = 14,899,701,428.16
  5. Step 5: Solve for x
    x = 14,899,701,428.16/116,423.20
  6. Step 6: Final answer
    x = 127,978.80

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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.