Home / 230,377.48-345,423.64-89,971

Finding the Fourth Proportional to 230,377.48, 345,423.64 and 89,971

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Solution

The fourth proportional to 230,377.48, 345,423.64 and 89,971 is: 134,900.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,377.48 : 345,423.64 = 89,971 : x
  2. Step 2: Convert to fraction form
    230,377.48/345,423.64 = 89,971/x
  3. Step 3: Cross multiply
    230,377.48x = 345,423.64 × 89,971
  4. Step 4: Simplify right side
    230,377.48x = 31,078,110,314.44
  5. Step 5: Solve for x
    x = 31,078,110,314.44/230,377.48
  6. Step 6: Final answer
    x = 134,900.82

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1.5x scale

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.