Home / 137,856.04-190,313.60-92,771.08

Finding the Fourth Proportional to 137,856.04, 190,313.60 and 92,771.08

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Solution

The fourth proportional to 137,856.04, 190,313.60 and 92,771.08 is: 128,072.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,856.04 : 190,313.60 = 92,771.08 : x
  2. Step 2: Convert to fraction form
    137,856.04/190,313.60 = 92,771.08/x
  3. Step 3: Cross multiply
    137,856.04x = 190,313.60 × 92,771.08
  4. Step 4: Simplify right side
    137,856.04x = 17,655,598,210.69
  5. Step 5: Solve for x
    x = 17,655,598,210.69/137,856.04
  6. Step 6: Final answer
    x = 128,072.72

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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.