Home / 189,155.08-261,035.76-104,275.18

Finding the Fourth Proportional to 189,155.08, 261,035.76 and 104,275.18

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Solution

The fourth proportional to 189,155.08, 261,035.76 and 104,275.18 is: 143,900.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,155.08 : 261,035.76 = 104,275.18 : x
  2. Step 2: Convert to fraction form
    189,155.08/261,035.76 = 104,275.18/x
  3. Step 3: Cross multiply
    189,155.08x = 261,035.76 × 104,275.18
  4. Step 4: Simplify right side
    189,155.08x = 27,219,550,860.44
  5. Step 5: Solve for x
    x = 27,219,550,860.44/189,155.08
  6. Step 6: Final answer
    x = 143,900.71

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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.