Home / 145,900.04-201,342.05-78,832.04

Finding the Fourth Proportional to 145,900.04, 201,342.05 and 78,832.04

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Solution

The fourth proportional to 145,900.04, 201,342.05 and 78,832.04 is: 108,788.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,900.04 : 201,342.05 = 78,832.04 : x
  2. Step 2: Convert to fraction form
    145,900.04/201,342.05 = 78,832.04/x
  3. Step 3: Cross multiply
    145,900.04x = 201,342.05 × 78,832.04
  4. Step 4: Simplify right side
    145,900.04x = 15,872,203,138.41
  5. Step 5: Solve for x
    x = 15,872,203,138.41/145,900.04
  6. Step 6: Final answer
    x = 108,788.21

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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.