Home / 236,784.03-355,164.45-87,012.79

Finding the Fourth Proportional to 236,784.03, 355,164.45 and 87,012.79

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Solution

The fourth proportional to 236,784.03, 355,164.45 and 87,012.79 is: 130,514.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,784.03 : 355,164.45 = 87,012.79 : x
  2. Step 2: Convert to fraction form
    236,784.03/355,164.45 = 87,012.79/x
  3. Step 3: Cross multiply
    236,784.03x = 355,164.45 × 87,012.79
  4. Step 4: Simplify right side
    236,784.03x = 30,903,849,703.32
  5. Step 5: Solve for x
    x = 30,903,849,703.32/236,784.03
  6. Step 6: Final answer
    x = 130,514.92

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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.