Home / 103,688.48-155,527.24-51,080.20

Finding the Fourth Proportional to 103,688.48, 155,527.24 and 51,080.20

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Solution

The fourth proportional to 103,688.48, 155,527.24 and 51,080.20 is: 76,617.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,688.48 : 155,527.24 = 51,080.20 : x
  2. Step 2: Convert to fraction form
    103,688.48/155,527.24 = 51,080.20/x
  3. Step 3: Cross multiply
    103,688.48x = 155,527.24 × 51,080.20
  4. Step 4: Simplify right side
    103,688.48x = 7,944,362,524.65
  5. Step 5: Solve for x
    x = 7,944,362,524.65/103,688.48
  6. Step 6: Final answer
    x = 76,617.60

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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.