Home / 103,238.34-142,466.66-57,915.49

Finding the Fourth Proportional to 103,238.34, 142,466.66 and 57,915.49

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Solution

The fourth proportional to 103,238.34, 142,466.66 and 57,915.49 is: 79,922.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,238.34 : 142,466.66 = 57,915.49 : x
  2. Step 2: Convert to fraction form
    103,238.34/142,466.66 = 57,915.49/x
  3. Step 3: Cross multiply
    103,238.34x = 142,466.66 × 57,915.49
  4. Step 4: Simplify right side
    103,238.34x = 8,251,026,422.56
  5. Step 5: Solve for x
    x = 8,251,026,422.56/103,238.34
  6. Step 6: Final answer
    x = 79,922.11

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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.