Home / 136,412.15-188,244-75,979.67

Finding the Fourth Proportional to 136,412.15, 188,244 and 75,979.67

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Solution

The fourth proportional to 136,412.15, 188,244 and 75,979.67 is: 104,849.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,412.15 : 188,244 = 75,979.67 : x
  2. Step 2: Convert to fraction form
    136,412.15/188,244 = 75,979.67/x
  3. Step 3: Cross multiply
    136,412.15x = 188,244 × 75,979.67
  4. Step 4: Simplify right side
    136,412.15x = 14,302,716,058.26
  5. Step 5: Solve for x
    x = 14,302,716,058.26/136,412.15
  6. Step 6: Final answer
    x = 104,849.29

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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.