Home / 103,942.23-143,440.28-56,195.58

Finding the Fourth Proportional to 103,942.23, 143,440.28 and 56,195.58

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Solution

The fourth proportional to 103,942.23, 143,440.28 and 56,195.58 is: 77,549.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,942.23 : 143,440.28 = 56,195.58 : x
  2. Step 2: Convert to fraction form
    103,942.23/143,440.28 = 56,195.58/x
  3. Step 3: Cross multiply
    103,942.23x = 143,440.28 × 56,195.58
  4. Step 4: Simplify right side
    103,942.23x = 8,060,709,729.96
  5. Step 5: Solve for x
    x = 8,060,709,729.96/103,942.23
  6. Step 6: Final answer
    x = 77,549.90

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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.