Home / 106,631.46-147,041.19-91,574.01

Finding the Fourth Proportional to 106,631.46, 147,041.19 and 91,574.01

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Solution

The fourth proportional to 106,631.46, 147,041.19 and 91,574.01 is: 126,277.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,631.46 : 147,041.19 = 91,574.01 : x
  2. Step 2: Convert to fraction form
    106,631.46/147,041.19 = 91,574.01/x
  3. Step 3: Cross multiply
    106,631.46x = 147,041.19 × 91,574.01
  4. Step 4: Simplify right side
    106,631.46x = 13,465,151,403.47
  5. Step 5: Solve for x
    x = 13,465,151,403.47/106,631.46
  6. Step 6: Final answer
    x = 126,277.47

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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.