Home / 189,206.13-261,103.04-103,166.59

Finding the Fourth Proportional to 189,206.13, 261,103.04 and 103,166.59

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Solution

The fourth proportional to 189,206.13, 261,103.04 and 103,166.59 is: 142,369.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,206.13 : 261,103.04 = 103,166.59 : x
  2. Step 2: Convert to fraction form
    189,206.13/261,103.04 = 103,166.59/x
  3. Step 3: Cross multiply
    189,206.13x = 261,103.04 × 103,166.59
  4. Step 4: Simplify right side
    189,206.13x = 26,937,109,829.25
  5. Step 5: Solve for x
    x = 26,937,109,829.25/189,206.13
  6. Step 6: Final answer
    x = 142,369.12

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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.