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Finding the Fourth Proportional to 151,997.48, 209,752.62 and 84,009.72

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Solution

The fourth proportional to 151,997.48, 209,752.62 and 84,009.72 is: 115,931.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,997.48 : 209,752.62 = 84,009.72 : x
  2. Step 2: Convert to fraction form
    151,997.48/209,752.62 = 84,009.72/x
  3. Step 3: Cross multiply
    151,997.48x = 209,752.62 × 84,009.72
  4. Step 4: Simplify right side
    151,997.48x = 17,621,258,875.47
  5. Step 5: Solve for x
    x = 17,621,258,875.47/151,997.48
  6. Step 6: Final answer
    x = 115,931.26

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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.