Home / 190,028.90-284,865.15-71,779.70

Finding the Fourth Proportional to 190,028.90, 284,865.15 and 71,779.70

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Solution

The fourth proportional to 190,028.90, 284,865.15 and 71,779.70 is: 107,602.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,028.90 : 284,865.15 = 71,779.70 : x
  2. Step 2: Convert to fraction form
    190,028.90/284,865.15 = 71,779.70/x
  3. Step 3: Cross multiply
    190,028.90x = 284,865.15 × 71,779.70
  4. Step 4: Simplify right side
    190,028.90x = 20,447,535,007.46
  5. Step 5: Solve for x
    x = 20,447,535,007.46/190,028.90
  6. Step 6: Final answer
    x = 107,602.24

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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.