Home / 127,214.15-190,821.88-74,586.72

Finding the Fourth Proportional to 127,214.15, 190,821.88 and 74,586.72

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Solution

The fourth proportional to 127,214.15, 190,821.88 and 74,586.72 is: 111,880.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,214.15 : 190,821.88 = 74,586.72 : x
  2. Step 2: Convert to fraction form
    127,214.15/190,821.88 = 74,586.72/x
  3. Step 3: Cross multiply
    127,214.15x = 190,821.88 × 74,586.72
  4. Step 4: Simplify right side
    127,214.15x = 14,232,778,522.70
  5. Step 5: Solve for x
    x = 14,232,778,522.70/127,214.15
  6. Step 6: Final answer
    x = 111,880.47

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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.