Home / 109,529.08-151,137.30-61,779.58

Finding the Fourth Proportional to 109,529.08, 151,137.30 and 61,779.58

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Solution

The fourth proportional to 109,529.08, 151,137.30 and 61,779.58 is: 85,248.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,529.08 : 151,137.30 = 61,779.58 : x
  2. Step 2: Convert to fraction form
    109,529.08/151,137.30 = 61,779.58/x
  3. Step 3: Cross multiply
    109,529.08x = 151,137.30 × 61,779.58
  4. Step 4: Simplify right side
    109,529.08x = 9,337,198,916.33
  5. Step 5: Solve for x
    x = 9,337,198,916.33/109,529.08
  6. Step 6: Final answer
    x = 85,248.58

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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.