Home / 100,862.01-139,184.19-55,538.46

Finding the Fourth Proportional to 100,862.01, 139,184.19 and 55,538.46

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Solution

The fourth proportional to 100,862.01, 139,184.19 and 55,538.46 is: 76,640.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,862.01 : 139,184.19 = 55,538.46 : x
  2. Step 2: Convert to fraction form
    100,862.01/139,184.19 = 55,538.46/x
  3. Step 3: Cross multiply
    100,862.01x = 139,184.19 × 55,538.46
  4. Step 4: Simplify right side
    100,862.01x = 7,730,075,568.95
  5. Step 5: Solve for x
    x = 7,730,075,568.95/100,862.01
  6. Step 6: Final answer
    x = 76,640.11

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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.