Home / 235,701.90-325,261.83-128,269.50

Finding the Fourth Proportional to 235,701.90, 325,261.83 and 128,269.50

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Solution

The fourth proportional to 235,701.90, 325,261.83 and 128,269.50 is: 177,008.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,701.90 : 325,261.83 = 128,269.50 : x
  2. Step 2: Convert to fraction form
    235,701.90/325,261.83 = 128,269.50/x
  3. Step 3: Cross multiply
    235,701.90x = 325,261.83 × 128,269.50
  4. Step 4: Simplify right side
    235,701.90x = 41,721,172,303.19
  5. Step 5: Solve for x
    x = 41,721,172,303.19/235,701.90
  6. Step 6: Final answer
    x = 177,008.21

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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.