Home / 201,921.51-302,871.30-61,669.20

Finding the Fourth Proportional to 201,921.51, 302,871.30 and 61,669.20

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Solution

The fourth proportional to 201,921.51, 302,871.30 and 61,669.20 is: 92,500.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,921.51 : 302,871.30 = 61,669.20 : x
  2. Step 2: Convert to fraction form
    201,921.51/302,871.30 = 61,669.20/x
  3. Step 3: Cross multiply
    201,921.51x = 302,871.30 × 61,669.20
  4. Step 4: Simplify right side
    201,921.51x = 18,677,830,773.96
  5. Step 5: Solve for x
    x = 18,677,830,773.96/201,921.51
  6. Step 6: Final answer
    x = 92,500.45

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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.