Home / 127,615.49-176,334.75-100,969.64

Finding the Fourth Proportional to 127,615.49, 176,334.75 and 100,969.64

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Solution

The fourth proportional to 127,615.49, 176,334.75 and 100,969.64 is: 139,516.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,615.49 : 176,334.75 = 100,969.64 : x
  2. Step 2: Convert to fraction form
    127,615.49/176,334.75 = 100,969.64/x
  3. Step 3: Cross multiply
    127,615.49x = 176,334.75 × 100,969.64
  4. Step 4: Simplify right side
    127,615.49x = 17,804,455,345.32
  5. Step 5: Solve for x
    x = 17,804,455,345.32/127,615.49
  6. Step 6: Final answer
    x = 139,516.41

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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.