Home / 209,729.65-289,440.54-124,835.17

Finding the Fourth Proportional to 209,729.65, 289,440.54 and 124,835.17

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Solution

The fourth proportional to 209,729.65, 289,440.54 and 124,835.17 is: 172,280.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,729.65 : 289,440.54 = 124,835.17 : x
  2. Step 2: Convert to fraction form
    209,729.65/289,440.54 = 124,835.17/x
  3. Step 3: Cross multiply
    209,729.65x = 289,440.54 × 124,835.17
  4. Step 4: Simplify right side
    209,729.65x = 36,132,359,015.79
  5. Step 5: Solve for x
    x = 36,132,359,015.79/209,729.65
  6. Step 6: Final answer
    x = 172,280.64

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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.