Home / 209,862.32-314,886.40-109,998.77

Finding the Fourth Proportional to 209,862.32, 314,886.40 and 109,998.77

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Solution

The fourth proportional to 209,862.32, 314,886.40 and 109,998.77 is: 165,046.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,862.32 : 314,886.40 = 109,998.77 : x
  2. Step 2: Convert to fraction form
    209,862.32/314,886.40 = 109,998.77/x
  3. Step 3: Cross multiply
    209,862.32x = 314,886.40 × 109,998.77
  4. Step 4: Simplify right side
    209,862.32x = 34,637,114,840.30
  5. Step 5: Solve for x
    x = 34,637,114,840.30/209,862.32
  6. Step 6: Final answer
    x = 165,046.85

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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.