Home / 152,146.23-210,134.13-103,664.09

Finding the Fourth Proportional to 152,146.23, 210,134.13 and 103,664.09

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Solution

The fourth proportional to 152,146.23, 210,134.13 and 103,664.09 is: 143,173.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,146.23 : 210,134.13 = 103,664.09 : x
  2. Step 2: Convert to fraction form
    152,146.23/210,134.13 = 103,664.09/x
  3. Step 3: Cross multiply
    152,146.23x = 210,134.13 × 103,664.09
  4. Step 4: Simplify right side
    152,146.23x = 21,783,363,364.39
  5. Step 5: Solve for x
    x = 21,783,363,364.39/152,146.23
  6. Step 6: Final answer
    x = 143,173.86

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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.