Home / 138,341.85-190,856.33-84,533.46

Finding the Fourth Proportional to 138,341.85, 190,856.33 and 84,533.46

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Solution

The fourth proportional to 138,341.85, 190,856.33 and 84,533.46 is: 116,622.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,341.85 : 190,856.33 = 84,533.46 : x
  2. Step 2: Convert to fraction form
    138,341.85/190,856.33 = 84,533.46/x
  3. Step 3: Cross multiply
    138,341.85x = 190,856.33 × 84,533.46
  4. Step 4: Simplify right side
    138,341.85x = 16,133,745,515.13
  5. Step 5: Solve for x
    x = 16,133,745,515.13/138,341.85
  6. Step 6: Final answer
    x = 116,622.31

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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.