Home / 143,580.40-215,390.32-48,785.12

Finding the Fourth Proportional to 143,580.40, 215,390.32 and 48,785.12

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Solution

The fourth proportional to 143,580.40, 215,390.32 and 48,785.12 is: 73,184.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,580.40 : 215,390.32 = 48,785.12 : x
  2. Step 2: Convert to fraction form
    143,580.40/215,390.32 = 48,785.12/x
  3. Step 3: Cross multiply
    143,580.40x = 215,390.32 × 48,785.12
  4. Step 4: Simplify right side
    143,580.40x = 10,507,842,608.04
  5. Step 5: Solve for x
    x = 10,507,842,608.04/143,580.40
  6. Step 6: Final answer
    x = 73,184.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.