Home / 230,046.05-317,457.36-128,071.52

Finding the Fourth Proportional to 230,046.05, 317,457.36 and 128,071.52

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Solution

The fourth proportional to 230,046.05, 317,457.36 and 128,071.52 is: 176,735.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,046.05 : 317,457.36 = 128,071.52 : x
  2. Step 2: Convert to fraction form
    230,046.05/317,457.36 = 128,071.52/x
  3. Step 3: Cross multiply
    230,046.05x = 317,457.36 × 128,071.52
  4. Step 4: Simplify right side
    230,046.05x = 40,657,246,630.39
  5. Step 5: Solve for x
    x = 40,657,246,630.39/230,046.05
  6. Step 6: Final answer
    x = 176,735.25

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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.