Home / 236,001.06-353,870.35-78,143.40

Finding the Fourth Proportional to 236,001.06, 353,870.35 and 78,143.40

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Solution

The fourth proportional to 236,001.06, 353,870.35 and 78,143.40 is: 117,171.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,001.06 : 353,870.35 = 78,143.40 : x
  2. Step 2: Convert to fraction form
    236,001.06/353,870.35 = 78,143.40/x
  3. Step 3: Cross multiply
    236,001.06x = 353,870.35 × 78,143.40
  4. Step 4: Simplify right side
    236,001.06x = 27,652,632,308.19
  5. Step 5: Solve for x
    x = 27,652,632,308.19/236,001.06
  6. Step 6: Final answer
    x = 117,171.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.