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Finding the Fourth Proportional to 172,877.84, 259,254.47 and 73,045.81

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Solution

The fourth proportional to 172,877.84, 259,254.47 and 73,045.81 is: 109,542.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,877.84 : 259,254.47 = 73,045.81 : x
  2. Step 2: Convert to fraction form
    172,877.84/259,254.47 = 73,045.81/x
  3. Step 3: Cross multiply
    172,877.84x = 259,254.47 × 73,045.81
  4. Step 4: Simplify right side
    172,877.84x = 18,937,453,263.95
  5. Step 5: Solve for x
    x = 18,937,453,263.95/172,877.84
  6. Step 6: Final answer
    x = 109,542.40

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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.