Home / 125,416.84-172,791.18-119,438.13

Finding the Fourth Proportional to 125,416.84, 172,791.18 and 119,438.13

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Solution

The fourth proportional to 125,416.84, 172,791.18 and 119,438.13 is: 164,554.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,416.84 : 172,791.18 = 119,438.13 : x
  2. Step 2: Convert to fraction form
    125,416.84/172,791.18 = 119,438.13/x
  3. Step 3: Cross multiply
    125,416.84x = 172,791.18 × 119,438.13
  4. Step 4: Simplify right side
    125,416.84x = 20,637,855,245.77
  5. Step 5: Solve for x
    x = 20,637,855,245.77/125,416.84
  6. Step 6: Final answer
    x = 164,554.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.