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Finding the Fourth Proportional to 134,971.20, 202,165.20 and 111,643.20

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Solution

The fourth proportional to 134,971.20, 202,165.20 and 111,643.20 is: 167,223.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,971.20 : 202,165.20 = 111,643.20 : x
  2. Step 2: Convert to fraction form
    134,971.20/202,165.20 = 111,643.20/x
  3. Step 3: Cross multiply
    134,971.20x = 202,165.20 × 111,643.20
  4. Step 4: Simplify right side
    134,971.20x = 22,570,369,856.64
  5. Step 5: Solve for x
    x = 22,570,369,856.64/134,971.20
  6. Step 6: Final answer
    x = 167,223.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.