Home / 189,214.83-261,116.19-104,332.10

Finding the Fourth Proportional to 189,214.83, 261,116.19 and 104,332.10

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Solution

The fourth proportional to 189,214.83, 261,116.19 and 104,332.10 is: 143,978.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,214.83 : 261,116.19 = 104,332.10 : x
  2. Step 2: Convert to fraction form
    189,214.83/261,116.19 = 104,332.10/x
  3. Step 3: Cross multiply
    189,214.83x = 261,116.19 × 104,332.10
  4. Step 4: Simplify right side
    189,214.83x = 27,242,799,141.12
  5. Step 5: Solve for x
    x = 27,242,799,141.12/189,214.83
  6. Step 6: Final answer
    x = 143,978.14

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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.