Home / 185,564.84-278,344.02-128,586.20

Finding the Fourth Proportional to 185,564.84, 278,344.02 and 128,586.20

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Solution

The fourth proportional to 185,564.84, 278,344.02 and 128,586.20 is: 192,877.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,564.84 : 278,344.02 = 128,586.20 : x
  2. Step 2: Convert to fraction form
    185,564.84/278,344.02 = 128,586.20/x
  3. Step 3: Cross multiply
    185,564.84x = 278,344.02 × 128,586.20
  4. Step 4: Simplify right side
    185,564.84x = 35,791,199,824.52
  5. Step 5: Solve for x
    x = 35,791,199,824.52/185,564.84
  6. Step 6: Final answer
    x = 192,877.05

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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.