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Finding the Fourth Proportional to 172,740.84, 259,111.26 and 98,817

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Solution

The fourth proportional to 172,740.84, 259,111.26 and 98,817 is: 148,225.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,740.84 : 259,111.26 = 98,817 : x
  2. Step 2: Convert to fraction form
    172,740.84/259,111.26 = 98,817/x
  3. Step 3: Cross multiply
    172,740.84x = 259,111.26 × 98,817
  4. Step 4: Simplify right side
    172,740.84x = 25,604,597,379.42
  5. Step 5: Solve for x
    x = 25,604,597,379.42/172,740.84
  6. Step 6: Final answer
    x = 148,225.50

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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.