Home / 145,595.37-200,923.04-81,065.51

Finding the Fourth Proportional to 145,595.37, 200,923.04 and 81,065.51

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Solution

The fourth proportional to 145,595.37, 200,923.04 and 81,065.51 is: 111,871.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,595.37 : 200,923.04 = 81,065.51 : x
  2. Step 2: Convert to fraction form
    145,595.37/200,923.04 = 81,065.51/x
  3. Step 3: Cross multiply
    145,595.37x = 200,923.04 × 81,065.51
  4. Step 4: Simplify right side
    145,595.37x = 16,287,927,906.40
  5. Step 5: Solve for x
    x = 16,287,927,906.40/145,595.37
  6. Step 6: Final answer
    x = 111,871.19

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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.