Home / 105,021.74-157,486.23-30,124.89

Finding the Fourth Proportional to 105,021.74, 157,486.23 and 30,124.89

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Solution

The fourth proportional to 105,021.74, 157,486.23 and 30,124.89 is: 45,174.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,021.74 : 157,486.23 = 30,124.89 : x
  2. Step 2: Convert to fraction form
    105,021.74/157,486.23 = 30,124.89/x
  3. Step 3: Cross multiply
    105,021.74x = 157,486.23 × 30,124.89
  4. Step 4: Simplify right side
    105,021.74x = 4,744,255,355.26
  5. Step 5: Solve for x
    x = 4,744,255,355.26/105,021.74
  6. Step 6: Final answer
    x = 45,174.03

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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.