Home / 135,810.04-187,416.44-75,381.21

Finding the Fourth Proportional to 135,810.04, 187,416.44 and 75,381.21

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Solution

The fourth proportional to 135,810.04, 187,416.44 and 75,381.21 is: 104,025.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,810.04 : 187,416.44 = 75,381.21 : x
  2. Step 2: Convert to fraction form
    135,810.04/187,416.44 = 75,381.21/x
  3. Step 3: Cross multiply
    135,810.04x = 187,416.44 × 75,381.21
  4. Step 4: Simplify right side
    135,810.04x = 14,127,678,021.09
  5. Step 5: Solve for x
    x = 14,127,678,021.09/135,810.04
  6. Step 6: Final answer
    x = 104,025.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.