Home / 189,455.79-261,447.57-104,572.83

Finding the Fourth Proportional to 189,455.79, 261,447.57 and 104,572.83

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Solution

The fourth proportional to 189,455.79, 261,447.57 and 104,572.83 is: 144,309.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,455.79 : 261,447.57 = 104,572.83 : x
  2. Step 2: Convert to fraction form
    189,455.79/261,447.57 = 104,572.83/x
  3. Step 3: Cross multiply
    189,455.79x = 261,447.57 × 104,572.83
  4. Step 4: Simplify right side
    189,455.79x = 27,340,312,291.52
  5. Step 5: Solve for x
    x = 27,340,312,291.52/189,455.79
  6. Step 6: Final answer
    x = 144,309.72

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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.