Home / 209,707.20-289,370.88-119,030.40

Finding the Fourth Proportional to 209,707.20, 289,370.88 and 119,030.40

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Solution

The fourth proportional to 209,707.20, 289,370.88 and 119,030.40 is: 164,247.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,707.20 : 289,370.88 = 119,030.40 : x
  2. Step 2: Convert to fraction form
    209,707.20/289,370.88 = 119,030.40/x
  3. Step 3: Cross multiply
    209,707.20x = 289,370.88 × 119,030.40
  4. Step 4: Simplify right side
    209,707.20x = 34,443,931,594.75
  5. Step 5: Solve for x
    x = 34,443,931,594.75/209,707.20
  6. Step 6: Final answer
    x = 164,247.73

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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.