Home / 124,518.36-186,904.67-91,139.28

Finding the Fourth Proportional to 124,518.36, 186,904.67 and 91,139.28

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Solution

The fourth proportional to 124,518.36, 186,904.67 and 91,139.28 is: 136,801.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,518.36 : 186,904.67 = 91,139.28 : x
  2. Step 2: Convert to fraction form
    124,518.36/186,904.67 = 91,139.28/x
  3. Step 3: Cross multiply
    124,518.36x = 186,904.67 × 91,139.28
  4. Step 4: Simplify right side
    124,518.36x = 17,034,355,895.85
  5. Step 5: Solve for x
    x = 17,034,355,895.85/124,518.36
  6. Step 6: Final answer
    x = 136,801.96

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.