Home / 142,747.40-214,070.70-49,231.40

Finding the Fourth Proportional to 142,747.40, 214,070.70 and 49,231.40

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Solution

The fourth proportional to 142,747.40, 214,070.70 and 49,231.40 is: 73,829.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,747.40 : 214,070.70 = 49,231.40 : x
  2. Step 2: Convert to fraction form
    142,747.40/214,070.70 = 49,231.40/x
  3. Step 3: Cross multiply
    142,747.40x = 214,070.70 × 49,231.40
  4. Step 4: Simplify right side
    142,747.40x = 10,539,000,259.98
  5. Step 5: Solve for x
    x = 10,539,000,259.98/142,747.40
  6. Step 6: Final answer
    x = 73,829.72

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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.