Home / 188,136.40-282,211.20-61,779.52

Finding the Fourth Proportional to 188,136.40, 282,211.20 and 61,779.52

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Solution

The fourth proportional to 188,136.40, 282,211.20 and 61,779.52 is: 92,671.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,136.40 : 282,211.20 = 61,779.52 : x
  2. Step 2: Convert to fraction form
    188,136.40/282,211.20 = 61,779.52/x
  3. Step 3: Cross multiply
    188,136.40x = 282,211.20 × 61,779.52
  4. Step 4: Simplify right side
    188,136.40x = 17,434,872,474.62
  5. Step 5: Solve for x
    x = 17,434,872,474.62/188,136.40
  6. Step 6: Final answer
    x = 92,671.45

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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.