Home / 209,830.91-289,557.58-119,186.60

Finding the Fourth Proportional to 209,830.91, 289,557.58 and 119,186.60

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Solution

The fourth proportional to 209,830.91, 289,557.58 and 119,186.60 is: 164,472.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,830.91 : 289,557.58 = 119,186.60 : x
  2. Step 2: Convert to fraction form
    209,830.91/289,557.58 = 119,186.60/x
  3. Step 3: Cross multiply
    209,830.91x = 289,557.58 × 119,186.60
  4. Step 4: Simplify right side
    209,830.91x = 34,511,381,420.71
  5. Step 5: Solve for x
    x = 34,511,381,420.71/209,830.91
  6. Step 6: Final answer
    x = 164,472.35

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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.