Home / 103,122.30-142,307.44-57,800.20

Finding the Fourth Proportional to 103,122.30, 142,307.44 and 57,800.20

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Solution

The fourth proportional to 103,122.30, 142,307.44 and 57,800.20 is: 79,763.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,122.30 : 142,307.44 = 57,800.20 : x
  2. Step 2: Convert to fraction form
    103,122.30/142,307.44 = 57,800.20/x
  3. Step 3: Cross multiply
    103,122.30x = 142,307.44 × 57,800.20
  4. Step 4: Simplify right side
    103,122.30x = 8,225,398,493.49
  5. Step 5: Solve for x
    x = 8,225,398,493.49/103,122.30
  6. Step 6: Final answer
    x = 79,763.53

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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.