Home / 147,228.72-203,170.71-86,798.28

Finding the Fourth Proportional to 147,228.72, 203,170.71 and 86,798.28

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Solution

The fourth proportional to 147,228.72, 203,170.71 and 86,798.28 is: 119,778.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,228.72 : 203,170.71 = 86,798.28 : x
  2. Step 2: Convert to fraction form
    147,228.72/203,170.71 = 86,798.28/x
  3. Step 3: Cross multiply
    147,228.72x = 203,170.71 × 86,798.28
  4. Step 4: Simplify right side
    147,228.72x = 17,634,868,174.38
  5. Step 5: Solve for x
    x = 17,634,868,174.38/147,228.72
  6. Step 6: Final answer
    x = 119,778.72

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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.