Home / 116,687.32-161,027.10-66,386.20

Finding the Fourth Proportional to 116,687.32, 161,027.10 and 66,386.20

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Solution

The fourth proportional to 116,687.32, 161,027.10 and 66,386.20 is: 91,612.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,687.32 : 161,027.10 = 66,386.20 : x
  2. Step 2: Convert to fraction form
    116,687.32/161,027.10 = 66,386.20/x
  3. Step 3: Cross multiply
    116,687.32x = 161,027.10 × 66,386.20
  4. Step 4: Simplify right side
    116,687.32x = 10,689,977,266.02
  5. Step 5: Solve for x
    x = 10,689,977,266.02/116,687.32
  6. Step 6: Final answer
    x = 91,612.16

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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.