Home / 235,530.24-325,034.10-128,102.76

Finding the Fourth Proportional to 235,530.24, 325,034.10 and 128,102.76

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Solution

The fourth proportional to 235,530.24, 325,034.10 and 128,102.76 is: 176,783.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,530.24 : 325,034.10 = 128,102.76 : x
  2. Step 2: Convert to fraction form
    235,530.24/325,034.10 = 128,102.76/x
  3. Step 3: Cross multiply
    235,530.24x = 325,034.10 × 128,102.76
  4. Step 4: Simplify right side
    235,530.24x = 41,637,765,304.12
  5. Step 5: Solve for x
    x = 41,637,765,304.12/235,530.24
  6. Step 6: Final answer
    x = 176,783.10

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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.