Home / 236,770.16-355,032.60-86,971.76

Finding the Fourth Proportional to 236,770.16, 355,032.60 and 86,971.76

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Solution

The fourth proportional to 236,770.16, 355,032.60 and 86,971.76 is: 130,412.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,770.16 : 355,032.60 = 86,971.76 : x
  2. Step 2: Convert to fraction form
    236,770.16/355,032.60 = 86,971.76/x
  3. Step 3: Cross multiply
    236,770.16x = 355,032.60 × 86,971.76
  4. Step 4: Simplify right side
    236,770.16x = 30,877,810,079.38
  5. Step 5: Solve for x
    x = 30,877,810,079.38/236,770.16
  6. Step 6: Final answer
    x = 130,412.59

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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.