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Finding the Fourth Proportional to 145,151, 200,273.32 and 84,687.12

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Solution

The fourth proportional to 145,151, 200,273.32 and 84,687.12 is: 116,847.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,151 : 200,273.32 = 84,687.12 : x
  2. Step 2: Convert to fraction form
    145,151/200,273.32 = 84,687.12/x
  3. Step 3: Cross multiply
    145,151x = 200,273.32 × 84,687.12
  4. Step 4: Simplify right side
    145,151x = 16,960,570,683.64
  5. Step 5: Solve for x
    x = 16,960,570,683.64/145,151
  6. Step 6: Final answer
    x = 116,847.77

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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.