Home / 116,428.37-174,518.21-66,400.74

Finding the Fourth Proportional to 116,428.37, 174,518.21 and 66,400.74

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Solution

The fourth proportional to 116,428.37, 174,518.21 and 66,400.74 is: 99,530.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,428.37 : 174,518.21 = 66,400.74 : x
  2. Step 2: Convert to fraction form
    116,428.37/174,518.21 = 66,400.74/x
  3. Step 3: Cross multiply
    116,428.37x = 174,518.21 × 66,400.74
  4. Step 4: Simplify right side
    116,428.37x = 11,588,138,287.48
  5. Step 5: Solve for x
    x = 11,588,138,287.48/116,428.37
  6. Step 6: Final answer
    x = 99,530.20

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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.