Home / 136,242.96-188,013.48-76,626.96

Finding the Fourth Proportional to 136,242.96, 188,013.48 and 76,626.96

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Solution

The fourth proportional to 136,242.96, 188,013.48 and 76,626.96 is: 105,744.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,242.96 : 188,013.48 = 76,626.96 : x
  2. Step 2: Convert to fraction form
    136,242.96/188,013.48 = 76,626.96/x
  3. Step 3: Cross multiply
    136,242.96x = 188,013.48 × 76,626.96
  4. Step 4: Simplify right side
    136,242.96x = 14,406,901,411.42
  5. Step 5: Solve for x
    x = 14,406,901,411.42/136,242.96
  6. Step 6: Final answer
    x = 105,744.19

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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.