Home / 127,285.35-190,928.55-43,045.95

Finding the Fourth Proportional to 127,285.35, 190,928.55 and 43,045.95

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Solution

The fourth proportional to 127,285.35, 190,928.55 and 43,045.95 is: 64,569.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,285.35 : 190,928.55 = 43,045.95 : x
  2. Step 2: Convert to fraction form
    127,285.35/190,928.55 = 43,045.95/x
  3. Step 3: Cross multiply
    127,285.35x = 190,928.55 × 43,045.95
  4. Step 4: Simplify right side
    127,285.35x = 8,218,700,816.87
  5. Step 5: Solve for x
    x = 8,218,700,816.87/127,285.35
  6. Step 6: Final answer
    x = 64,569.10

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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.