Home / 101,288.02-139,770.20-55,965.49

Finding the Fourth Proportional to 101,288.02, 139,770.20 and 55,965.49

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Solution

The fourth proportional to 101,288.02, 139,770.20 and 55,965.49 is: 77,228.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,288.02 : 139,770.20 = 55,965.49 : x
  2. Step 2: Convert to fraction form
    101,288.02/139,770.20 = 55,965.49/x
  3. Step 3: Cross multiply
    101,288.02x = 139,770.20 × 55,965.49
  4. Step 4: Simplify right side
    101,288.02x = 7,822,307,730.40
  5. Step 5: Solve for x
    x = 7,822,307,730.40/101,288.02
  6. Step 6: Final answer
    x = 77,228.36

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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.