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Finding the Fourth Proportional to 172,853.72, 259,280.51 and 54,534.32

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Solution

The fourth proportional to 172,853.72, 259,280.51 and 54,534.32 is: 81,801.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,853.72 : 259,280.51 = 54,534.32 : x
  2. Step 2: Convert to fraction form
    172,853.72/259,280.51 = 54,534.32/x
  3. Step 3: Cross multiply
    172,853.72x = 259,280.51 × 54,534.32
  4. Step 4: Simplify right side
    172,853.72x = 14,139,684,733.03
  5. Step 5: Solve for x
    x = 14,139,684,733.03/172,853.72
  6. Step 6: Final answer
    x = 81,801.45

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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.