Home / 230,011.85-317,425.67-128,030.84

Finding the Fourth Proportional to 230,011.85, 317,425.67 and 128,030.84

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Solution

The fourth proportional to 230,011.85, 317,425.67 and 128,030.84 is: 176,687.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,011.85 : 317,425.67 = 128,030.84 : x
  2. Step 2: Convert to fraction form
    230,011.85/317,425.67 = 128,030.84/x
  3. Step 3: Cross multiply
    230,011.85x = 317,425.67 × 128,030.84
  4. Step 4: Simplify right side
    230,011.85x = 40,640,275,167.66
  5. Step 5: Solve for x
    x = 40,640,275,167.66/230,011.85
  6. Step 6: Final answer
    x = 176,687.75

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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.