Home / 209,612.97-289,271.10-114,124.92

Finding the Fourth Proportional to 209,612.97, 289,271.10 and 114,124.92

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Solution

The fourth proportional to 209,612.97, 289,271.10 and 114,124.92 is: 157,495.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,612.97 : 289,271.10 = 114,124.92 : x
  2. Step 2: Convert to fraction form
    209,612.97/289,271.10 = 114,124.92/x
  3. Step 3: Cross multiply
    209,612.97x = 289,271.10 × 114,124.92
  4. Step 4: Simplify right side
    209,612.97x = 33,013,041,145.81
  5. Step 5: Solve for x
    x = 33,013,041,145.81/209,612.97
  6. Step 6: Final answer
    x = 157,495.22

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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.