Home / 235,623.60-325,161.98-128,194.40

Finding the Fourth Proportional to 235,623.60, 325,161.98 and 128,194.40

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Solution

The fourth proportional to 235,623.60, 325,161.98 and 128,194.40 is: 176,909.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,623.60 : 325,161.98 = 128,194.40 : x
  2. Step 2: Convert to fraction form
    235,623.60/325,161.98 = 128,194.40/x
  3. Step 3: Cross multiply
    235,623.60x = 325,161.98 × 128,194.40
  4. Step 4: Simplify right side
    235,623.60x = 41,683,944,928.91
  5. Step 5: Solve for x
    x = 41,683,944,928.91/235,623.60
  6. Step 6: Final answer
    x = 176,909.04

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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.