Home / 149,530.58-206,349.60-81,548.08

Finding the Fourth Proportional to 149,530.58, 206,349.60 and 81,548.08

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Solution

The fourth proportional to 149,530.58, 206,349.60 and 81,548.08 is: 112,534.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,530.58 : 206,349.60 = 81,548.08 : x
  2. Step 2: Convert to fraction form
    149,530.58/206,349.60 = 81,548.08/x
  3. Step 3: Cross multiply
    149,530.58x = 206,349.60 × 81,548.08
  4. Step 4: Simplify right side
    149,530.58x = 16,827,413,688.77
  5. Step 5: Solve for x
    x = 16,827,413,688.77/149,530.58
  6. Step 6: Final answer
    x = 112,534.93

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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.