Home / 230,091.12-317,525.52-129,491.28

Finding the Fourth Proportional to 230,091.12, 317,525.52 and 129,491.28

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Solution

The fourth proportional to 230,091.12, 317,525.52 and 129,491.28 is: 178,697.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,091.12 : 317,525.52 = 129,491.28 : x
  2. Step 2: Convert to fraction form
    230,091.12/317,525.52 = 129,491.28/x
  3. Step 3: Cross multiply
    230,091.12x = 317,525.52 × 129,491.28
  4. Step 4: Simplify right side
    230,091.12x = 41,116,786,017.47
  5. Step 5: Solve for x
    x = 41,116,786,017.47/230,091.12
  6. Step 6: Final answer
    x = 178,697.84

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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.