Home / 135,711.23-187,303.95-75,301.34

Finding the Fourth Proportional to 135,711.23, 187,303.95 and 75,301.34

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Solution

The fourth proportional to 135,711.23, 187,303.95 and 75,301.34 is: 103,928.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,711.23 : 187,303.95 = 75,301.34 : x
  2. Step 2: Convert to fraction form
    135,711.23/187,303.95 = 75,301.34/x
  3. Step 3: Cross multiply
    135,711.23x = 187,303.95 × 75,301.34
  4. Step 4: Simplify right side
    135,711.23x = 14,104,238,422.29
  5. Step 5: Solve for x
    x = 14,104,238,422.29/135,711.23
  6. Step 6: Final answer
    x = 103,928.31

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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.