Home / 236,045.13-325,742.31-128,615.17

Finding the Fourth Proportional to 236,045.13, 325,742.31 and 128,615.17

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Solution

The fourth proportional to 236,045.13, 325,742.31 and 128,615.17 is: 177,488.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,045.13 : 325,742.31 = 128,615.17 : x
  2. Step 2: Convert to fraction form
    236,045.13/325,742.31 = 128,615.17/x
  3. Step 3: Cross multiply
    236,045.13x = 325,742.31 × 128,615.17
  4. Step 4: Simplify right side
    236,045.13x = 41,895,402,576.84
  5. Step 5: Solve for x
    x = 41,895,402,576.84/236,045.13
  6. Step 6: Final answer
    x = 177,488.95

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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.