Home / 105,172.89-157,760.70-30,294.27

Finding the Fourth Proportional to 105,172.89, 157,760.70 and 30,294.27

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Solution

The fourth proportional to 105,172.89, 157,760.70 and 30,294.27 is: 45,441.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,172.89 : 157,760.70 = 30,294.27 : x
  2. Step 2: Convert to fraction form
    105,172.89/157,760.70 = 30,294.27/x
  3. Step 3: Cross multiply
    105,172.89x = 157,760.70 × 30,294.27
  4. Step 4: Simplify right side
    105,172.89x = 4,779,245,241.19
  5. Step 5: Solve for x
    x = 4,779,245,241.19/105,172.89
  6. Step 6: Final answer
    x = 45,441.80

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1.5x scale

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.