Home / 172,864.02-259,118.40-66,222.96

Finding the Fourth Proportional to 172,864.02, 259,118.40 and 66,222.96

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Solution

The fourth proportional to 172,864.02, 259,118.40 and 66,222.96 is: 99,266.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,864.02 : 259,118.40 = 66,222.96 : x
  2. Step 2: Convert to fraction form
    172,864.02/259,118.40 = 66,222.96/x
  3. Step 3: Cross multiply
    172,864.02x = 259,118.40 × 66,222.96
  4. Step 4: Simplify right side
    172,864.02x = 17,159,587,438.46
  5. Step 5: Solve for x
    x = 17,159,587,438.46/172,864.02
  6. Step 6: Final answer
    x = 99,266.39

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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.