Home / 210,020.96-314,675.04-126,740

Finding the Fourth Proportional to 210,020.96, 314,675.04 and 126,740

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Solution

The fourth proportional to 210,020.96, 314,675.04 and 126,740 is: 189,894.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,020.96 : 314,675.04 = 126,740 : x
  2. Step 2: Convert to fraction form
    210,020.96/314,675.04 = 126,740/x
  3. Step 3: Cross multiply
    210,020.96x = 314,675.04 × 126,740
  4. Step 4: Simplify right side
    210,020.96x = 39,881,914,569.60
  5. Step 5: Solve for x
    x = 39,881,914,569.60/210,020.96
  6. Step 6: Final answer
    x = 189,894.93

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.