Home / 145,406.55-200,814.02-129,556.58

Finding the Fourth Proportional to 145,406.55, 200,814.02 and 129,556.58

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Solution

The fourth proportional to 145,406.55, 200,814.02 and 129,556.58 is: 178,924.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,406.55 : 200,814.02 = 129,556.58 : x
  2. Step 2: Convert to fraction form
    145,406.55/200,814.02 = 129,556.58/x
  3. Step 3: Cross multiply
    145,406.55x = 200,814.02 × 129,556.58
  4. Step 4: Simplify right side
    145,406.55x = 26,016,776,481.24
  5. Step 5: Solve for x
    x = 26,016,776,481.24/145,406.55
  6. Step 6: Final answer
    x = 178,924.37

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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.