Home / 172,117.10-257,801.77-83,184.09

Finding the Fourth Proportional to 172,117.10, 257,801.77 and 83,184.09

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Solution

The fourth proportional to 172,117.10, 257,801.77 and 83,184.09 is: 124,595.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,117.10 : 257,801.77 = 83,184.09 : x
  2. Step 2: Convert to fraction form
    172,117.10/257,801.77 = 83,184.09/x
  3. Step 3: Cross multiply
    172,117.10x = 257,801.77 × 83,184.09
  4. Step 4: Simplify right side
    172,117.10x = 21,445,005,637.84
  5. Step 5: Solve for x
    x = 21,445,005,637.84/172,117.10
  6. Step 6: Final answer
    x = 124,595.44

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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.