Home / 127,219.80-190,829.70-74,688.60

Finding the Fourth Proportional to 127,219.80, 190,829.70 and 74,688.60

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Solution

The fourth proportional to 127,219.80, 190,829.70 and 74,688.60 is: 112,032.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,219.80 : 190,829.70 = 74,688.60 : x
  2. Step 2: Convert to fraction form
    127,219.80/190,829.70 = 74,688.60/x
  3. Step 3: Cross multiply
    127,219.80x = 190,829.70 × 74,688.60
  4. Step 4: Simplify right side
    127,219.80x = 14,252,803,131.42
  5. Step 5: Solve for x
    x = 14,252,803,131.42/127,219.80
  6. Step 6: Final answer
    x = 112,032.90

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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.