Home / 143,607.90-215,421.45-48,836.70

Finding the Fourth Proportional to 143,607.90, 215,421.45 and 48,836.70

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Solution

The fourth proportional to 143,607.90, 215,421.45 and 48,836.70 is: 73,258.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,607.90 : 215,421.45 = 48,836.70 : x
  2. Step 2: Convert to fraction form
    143,607.90/215,421.45 = 48,836.70/x
  3. Step 3: Cross multiply
    143,607.90x = 215,421.45 × 48,836.70
  4. Step 4: Simplify right side
    143,607.90x = 10,520,472,727.22
  5. Step 5: Solve for x
    x = 10,520,472,727.22/143,607.90
  6. Step 6: Final answer
    x = 73,258.31

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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.