Home / 236,784.50-354,955.30-86,984.55

Finding the Fourth Proportional to 236,784.50, 354,955.30 and 86,984.55

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Solution

The fourth proportional to 236,784.50, 354,955.30 and 86,984.55 is: 130,395.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,784.50 : 354,955.30 = 86,984.55 : x
  2. Step 2: Convert to fraction form
    236,784.50/354,955.30 = 86,984.55/x
  3. Step 3: Cross multiply
    236,784.50x = 354,955.30 × 86,984.55
  4. Step 4: Simplify right side
    236,784.50x = 30,875,626,823.15
  5. Step 5: Solve for x
    x = 30,875,626,823.15/236,784.50
  6. Step 6: Final answer
    x = 130,395.47

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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.