Home / 100,927.02-139,278.64-55,603.96

Finding the Fourth Proportional to 100,927.02, 139,278.64 and 55,603.96

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Solution

The fourth proportional to 100,927.02, 139,278.64 and 55,603.96 is: 76,733.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,927.02 : 139,278.64 = 55,603.96 : x
  2. Step 2: Convert to fraction form
    100,927.02/139,278.64 = 55,603.96/x
  3. Step 3: Cross multiply
    100,927.02x = 139,278.64 × 55,603.96
  4. Step 4: Simplify right side
    100,927.02x = 7,744,443,927.41
  5. Step 5: Solve for x
    x = 7,744,443,927.41/100,927.02
  6. Step 6: Final answer
    x = 76,733.11

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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.