Home / 135,541.23-187,038.42-75,108.34

Finding the Fourth Proportional to 135,541.23, 187,038.42 and 75,108.34

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Solution

The fourth proportional to 135,541.23, 187,038.42 and 75,108.34 is: 103,644.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,541.23 : 187,038.42 = 75,108.34 : x
  2. Step 2: Convert to fraction form
    135,541.23/187,038.42 = 75,108.34/x
  3. Step 3: Cross multiply
    135,541.23x = 187,038.42 × 75,108.34
  4. Step 4: Simplify right side
    135,541.23x = 14,048,145,242.42
  5. Step 5: Solve for x
    x = 14,048,145,242.42/135,541.23
  6. Step 6: Final answer
    x = 103,644.81

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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.