Home / 84,210.57-126,271.44-74,617.74

Finding the Fourth Proportional to 84,210.57, 126,271.44 and 74,617.74

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Solution

The fourth proportional to 84,210.57, 126,271.44 and 74,617.74 is: 111,887.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,210.57 : 126,271.44 = 74,617.74 : x
  2. Step 2: Convert to fraction form
    84,210.57/126,271.44 = 74,617.74/x
  3. Step 3: Cross multiply
    84,210.57x = 126,271.44 × 74,617.74
  4. Step 4: Simplify right side
    84,210.57x = 9,422,089,479.35
  5. Step 5: Solve for x
    x = 9,422,089,479.35/84,210.57
  6. Step 6: Final answer
    x = 111,887.25

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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.