Home / 127,133.55-190,888.65-71,085.60

Finding the Fourth Proportional to 127,133.55, 190,888.65 and 71,085.60

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Solution

The fourth proportional to 127,133.55, 190,888.65 and 71,085.60 is: 106,733.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,133.55 : 190,888.65 = 71,085.60 : x
  2. Step 2: Convert to fraction form
    127,133.55/190,888.65 = 71,085.60/x
  3. Step 3: Cross multiply
    127,133.55x = 190,888.65 × 71,085.60
  4. Step 4: Simplify right side
    127,133.55x = 13,569,434,218.44
  5. Step 5: Solve for x
    x = 13,569,434,218.44/127,133.55
  6. Step 6: Final answer
    x = 106,733.70

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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.