Home / 103,961.40-143,466.63-56,214.63

Finding the Fourth Proportional to 103,961.40, 143,466.63 and 56,214.63

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Solution

The fourth proportional to 103,961.40, 143,466.63 and 56,214.63 is: 77,576.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,961.40 : 143,466.63 = 56,214.63 : x
  2. Step 2: Convert to fraction form
    103,961.40/143,466.63 = 56,214.63/x
  3. Step 3: Cross multiply
    103,961.40x = 143,466.63 × 56,214.63
  4. Step 4: Simplify right side
    103,961.40x = 8,064,923,952.65
  5. Step 5: Solve for x
    x = 8,064,923,952.65/103,961.40
  6. Step 6: Final answer
    x = 77,576.14

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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.