Home / 103,709.23-155,612.25-53,762.06

Finding the Fourth Proportional to 103,709.23, 155,612.25 and 53,762.06

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Solution

The fourth proportional to 103,709.23, 155,612.25 and 53,762.06 is: 80,668.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,709.23 : 155,612.25 = 53,762.06 : x
  2. Step 2: Convert to fraction form
    103,709.23/155,612.25 = 53,762.06/x
  3. Step 3: Cross multiply
    103,709.23x = 155,612.25 × 53,762.06
  4. Step 4: Simplify right side
    103,709.23x = 8,366,035,510.27
  5. Step 5: Solve for x
    x = 8,366,035,510.27/103,709.23
  6. Step 6: Final answer
    x = 80,668.19

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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.