Home / 230,004.40-317,416.53-128,036.32

Finding the Fourth Proportional to 230,004.40, 317,416.53 and 128,036.32

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Solution

The fourth proportional to 230,004.40, 317,416.53 and 128,036.32 is: 176,695.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,004.40 : 317,416.53 = 128,036.32 : x
  2. Step 2: Convert to fraction form
    230,004.40/317,416.53 = 128,036.32/x
  3. Step 3: Cross multiply
    230,004.40x = 317,416.53 × 128,036.32
  4. Step 4: Simplify right side
    230,004.40x = 40,640,845,640.36
  5. Step 5: Solve for x
    x = 40,640,845,640.36/230,004.40
  6. Step 6: Final answer
    x = 176,695.95

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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.