Home / 189,822.16-261,967.80-104,947.12

Finding the Fourth Proportional to 189,822.16, 261,967.80 and 104,947.12

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Solution

The fourth proportional to 189,822.16, 261,967.80 and 104,947.12 is: 144,834.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,822.16 : 261,967.80 = 104,947.12 : x
  2. Step 2: Convert to fraction form
    189,822.16/261,967.80 = 104,947.12/x
  3. Step 3: Cross multiply
    189,822.16x = 261,967.80 × 104,947.12
  4. Step 4: Simplify right side
    189,822.16x = 27,492,766,142.74
  5. Step 5: Solve for x
    x = 27,492,766,142.74/189,822.16
  6. Step 6: Final answer
    x = 144,834.33

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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.