Home / 135,436.17-186,887.70-75,005.22

Finding the Fourth Proportional to 135,436.17, 186,887.70 and 75,005.22

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Solution

The fourth proportional to 135,436.17, 186,887.70 and 75,005.22 is: 103,499.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,436.17 : 186,887.70 = 75,005.22 : x
  2. Step 2: Convert to fraction form
    135,436.17/186,887.70 = 75,005.22/x
  3. Step 3: Cross multiply
    135,436.17x = 186,887.70 × 75,005.22
  4. Step 4: Simplify right side
    135,436.17x = 14,017,553,053.79
  5. Step 5: Solve for x
    x = 14,017,553,053.79/135,436.17
  6. Step 6: Final answer
    x = 103,499.33

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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.