Home / 105,328.72-157,988.18-26,441.20

Finding the Fourth Proportional to 105,328.72, 157,988.18 and 26,441.20

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Solution

The fourth proportional to 105,328.72, 157,988.18 and 26,441.20 is: 39,660.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,328.72 : 157,988.18 = 26,441.20 : x
  2. Step 2: Convert to fraction form
    105,328.72/157,988.18 = 26,441.20/x
  3. Step 3: Cross multiply
    105,328.72x = 157,988.18 × 26,441.20
  4. Step 4: Simplify right side
    105,328.72x = 4,177,397,065.02
  5. Step 5: Solve for x
    x = 4,177,397,065.02/105,328.72
  6. Step 6: Final answer
    x = 39,660.57

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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.