Home / 101,325.19-139,756.24-71,117.25

Finding the Fourth Proportional to 101,325.19, 139,756.24 and 71,117.25

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Solution

The fourth proportional to 101,325.19, 139,756.24 and 71,117.25 is: 98,090.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,325.19 : 139,756.24 = 71,117.25 : x
  2. Step 2: Convert to fraction form
    101,325.19/139,756.24 = 71,117.25/x
  3. Step 3: Cross multiply
    101,325.19x = 139,756.24 × 71,117.25
  4. Step 4: Simplify right side
    101,325.19x = 9,939,079,810.08
  5. Step 5: Solve for x
    x = 9,939,079,810.08/101,325.19
  6. Step 6: Final answer
    x = 98,090.91

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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.