Home / 230,162.72-317,582.16-129,539.36

Finding the Fourth Proportional to 230,162.72, 317,582.16 and 129,539.36

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Solution

The fourth proportional to 230,162.72, 317,582.16 and 129,539.36 is: 178,740.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,162.72 : 317,582.16 = 129,539.36 : x
  2. Step 2: Convert to fraction form
    230,162.72/317,582.16 = 129,539.36/x
  3. Step 3: Cross multiply
    230,162.72x = 317,582.16 × 129,539.36
  4. Step 4: Simplify right side
    230,162.72x = 41,139,389,753.82
  5. Step 5: Solve for x
    x = 41,139,389,753.82/230,162.72
  6. Step 6: Final answer
    x = 178,740.46

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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.