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Finding the Fourth Proportional to 143,801.80, 215,709.10 and 49,030.60

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Solution

The fourth proportional to 143,801.80, 215,709.10 and 49,030.60 is: 73,548.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,801.80 : 215,709.10 = 49,030.60 : x
  2. Step 2: Convert to fraction form
    143,801.80/215,709.10 = 49,030.60/x
  3. Step 3: Cross multiply
    143,801.80x = 215,709.10 × 49,030.60
  4. Step 4: Simplify right side
    143,801.80x = 10,576,346,598.46
  5. Step 5: Solve for x
    x = 10,576,346,598.46/143,801.80
  6. Step 6: Final answer
    x = 73,548.08

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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.