Home / 103,961.19-143,466.56-56,214.57

Finding the Fourth Proportional to 103,961.19, 143,466.56 and 56,214.57

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Solution

The fourth proportional to 103,961.19, 143,466.56 and 56,214.57 is: 77,576.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,961.19 : 143,466.56 = 56,214.57 : x
  2. Step 2: Convert to fraction form
    103,961.19/143,466.56 = 56,214.57/x
  3. Step 3: Cross multiply
    103,961.19x = 143,466.56 × 56,214.57
  4. Step 4: Simplify right side
    103,961.19x = 8,064,910,698.71
  5. Step 5: Solve for x
    x = 8,064,910,698.71/103,961.19
  6. Step 6: Final answer
    x = 77,576.17

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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.