Home / 103,915.48-143,403.26-56,168.82

Finding the Fourth Proportional to 103,915.48, 143,403.26 and 56,168.82

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Solution

The fourth proportional to 103,915.48, 143,403.26 and 56,168.82 is: 77,512.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,915.48 : 143,403.26 = 56,168.82 : x
  2. Step 2: Convert to fraction form
    103,915.48/143,403.26 = 56,168.82/x
  3. Step 3: Cross multiply
    103,915.48x = 143,403.26 × 56,168.82
  4. Step 4: Simplify right side
    103,915.48x = 8,054,791,898.35
  5. Step 5: Solve for x
    x = 8,054,791,898.35/103,915.48
  6. Step 6: Final answer
    x = 77,512.92

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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.