Home / 230,023.54-317,429.06-128,048.81

Finding the Fourth Proportional to 230,023.54, 317,429.06 and 128,048.81

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Solution

The fourth proportional to 230,023.54, 317,429.06 and 128,048.81 is: 176,705.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,023.54 : 317,429.06 = 128,048.81 : x
  2. Step 2: Convert to fraction form
    230,023.54/317,429.06 = 128,048.81/x
  3. Step 3: Cross multiply
    230,023.54x = 317,429.06 × 128,048.81
  4. Step 4: Simplify right side
    230,023.54x = 40,646,412,752.17
  5. Step 5: Solve for x
    x = 40,646,412,752.17/230,023.54
  6. Step 6: Final answer
    x = 176,705.45

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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.