Home / 101,348.28-139,788.18-77,433.57

Finding the Fourth Proportional to 101,348.28, 139,788.18 and 77,433.57

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Solution

The fourth proportional to 101,348.28, 139,788.18 and 77,433.57 is: 106,802.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,348.28 : 139,788.18 = 77,433.57 : x
  2. Step 2: Convert to fraction form
    101,348.28/139,788.18 = 77,433.57/x
  3. Step 3: Cross multiply
    101,348.28x = 139,788.18 × 77,433.57
  4. Step 4: Simplify right side
    101,348.28x = 10,824,297,821.20
  5. Step 5: Solve for x
    x = 10,824,297,821.20/101,348.28
  6. Step 6: Final answer
    x = 106,802.98

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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.