Home / 209,528.47-289,210.32-136,941.94

Finding the Fourth Proportional to 209,528.47, 289,210.32 and 136,941.94

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Solution

The fourth proportional to 209,528.47, 289,210.32 and 136,941.94 is: 189,019.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,528.47 : 289,210.32 = 136,941.94 : x
  2. Step 2: Convert to fraction form
    209,528.47/289,210.32 = 136,941.94/x
  3. Step 3: Cross multiply
    209,528.47x = 289,210.32 × 136,941.94
  4. Step 4: Simplify right side
    209,528.47x = 39,605,022,288.82
  5. Step 5: Solve for x
    x = 39,605,022,288.82/209,528.47
  6. Step 6: Final answer
    x = 189,019.77

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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.