Home / 189,164.62-261,050.07-103,123.65

Finding the Fourth Proportional to 189,164.62, 261,050.07 and 103,123.65

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Solution

The fourth proportional to 189,164.62, 261,050.07 and 103,123.65 is: 142,312.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,164.62 : 261,050.07 = 103,123.65 : x
  2. Step 2: Convert to fraction form
    189,164.62/261,050.07 = 103,123.65/x
  3. Step 3: Cross multiply
    189,164.62x = 261,050.07 × 103,123.65
  4. Step 4: Simplify right side
    189,164.62x = 26,920,436,051.16
  5. Step 5: Solve for x
    x = 26,920,436,051.16/189,164.62
  6. Step 6: Final answer
    x = 142,312.21

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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.