Home / 235,834.08-325,456.89-128,410.01

Finding the Fourth Proportional to 235,834.08, 325,456.89 and 128,410.01

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Solution

The fourth proportional to 235,834.08, 325,456.89 and 128,410.01 is: 177,209.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,834.08 : 325,456.89 = 128,410.01 : x
  2. Step 2: Convert to fraction form
    235,834.08/325,456.89 = 128,410.01/x
  3. Step 3: Cross multiply
    235,834.08x = 325,456.89 × 128,410.01
  4. Step 4: Simplify right side
    235,834.08x = 41,791,921,611.11
  5. Step 5: Solve for x
    x = 41,791,921,611.11/235,834.08
  6. Step 6: Final answer
    x = 177,209.00

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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.