Home / 230,106.93-345,176.03-78,242.15

Finding the Fourth Proportional to 230,106.93, 345,176.03 and 78,242.15

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Solution

The fourth proportional to 230,106.93, 345,176.03 and 78,242.15 is: 117,368.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,106.93 : 345,176.03 = 78,242.15 : x
  2. Step 2: Convert to fraction form
    230,106.93/345,176.03 = 78,242.15/x
  3. Step 3: Cross multiply
    230,106.93x = 345,176.03 × 78,242.15
  4. Step 4: Simplify right side
    230,106.93x = 27,007,315,774.21
  5. Step 5: Solve for x
    x = 27,007,315,774.21/230,106.93
  6. Step 6: Final answer
    x = 117,368.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.