Home / 145,595.87-200,921.89-81,933.67

Finding the Fourth Proportional to 145,595.87, 200,921.89 and 81,933.67

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Solution

The fourth proportional to 145,595.87, 200,921.89 and 81,933.67 is: 113,068.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,595.87 : 200,921.89 = 81,933.67 : x
  2. Step 2: Convert to fraction form
    145,595.87/200,921.89 = 81,933.67/x
  3. Step 3: Cross multiply
    145,595.87x = 200,921.89 × 81,933.67
  4. Step 4: Simplify right side
    145,595.87x = 16,462,267,831.04
  5. Step 5: Solve for x
    x = 16,462,267,831.04/145,595.87
  6. Step 6: Final answer
    x = 113,068.23

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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.