Home / 235,681.22-325,246.93-128,258.18

Finding the Fourth Proportional to 235,681.22, 325,246.93 and 128,258.18

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Solution

The fourth proportional to 235,681.22, 325,246.93 and 128,258.18 is: 177,000.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,681.22 : 325,246.93 = 128,258.18 : x
  2. Step 2: Convert to fraction form
    235,681.22/325,246.93 = 128,258.18/x
  3. Step 3: Cross multiply
    235,681.22x = 325,246.93 × 128,258.18
  4. Step 4: Simplify right side
    235,681.22x = 41,715,579,292.39
  5. Step 5: Solve for x
    x = 41,715,579,292.39/235,681.22
  6. Step 6: Final answer
    x = 177,000.01

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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.