Home / 189,452.45-261,443.13-103,411.09

Finding the Fourth Proportional to 189,452.45, 261,443.13 and 103,411.09

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Solution

The fourth proportional to 189,452.45, 261,443.13 and 103,411.09 is: 142,706.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,452.45 : 261,443.13 = 103,411.09 : x
  2. Step 2: Convert to fraction form
    189,452.45/261,443.13 = 103,411.09/x
  3. Step 3: Cross multiply
    189,452.45x = 261,443.13 × 103,411.09
  4. Step 4: Simplify right side
    189,452.45x = 27,036,118,985.32
  5. Step 5: Solve for x
    x = 27,036,118,985.32/189,452.45
  6. Step 6: Final answer
    x = 142,706.62

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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.