Home / 103,764.32-143,193.20-58,442.38

Finding the Fourth Proportional to 103,764.32, 143,193.20 and 58,442.38

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Solution

The fourth proportional to 103,764.32, 143,193.20 and 58,442.38 is: 80,649.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,764.32 : 143,193.20 = 58,442.38 : x
  2. Step 2: Convert to fraction form
    103,764.32/143,193.20 = 58,442.38/x
  3. Step 3: Cross multiply
    103,764.32x = 143,193.20 × 58,442.38
  4. Step 4: Simplify right side
    103,764.32x = 8,368,551,407.82
  5. Step 5: Solve for x
    x = 8,368,551,407.82/103,764.32
  6. Step 6: Final answer
    x = 80,649.60

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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.