Home / 151,214.16-208,683.72-84,147.60

Finding the Fourth Proportional to 151,214.16, 208,683.72 and 84,147.60

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Solution

The fourth proportional to 151,214.16, 208,683.72 and 84,147.60 is: 116,128.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,214.16 : 208,683.72 = 84,147.60 : x
  2. Step 2: Convert to fraction form
    151,214.16/208,683.72 = 84,147.60/x
  3. Step 3: Cross multiply
    151,214.16x = 208,683.72 × 84,147.60
  4. Step 4: Simplify right side
    151,214.16x = 17,560,234,197.07
  5. Step 5: Solve for x
    x = 17,560,234,197.07/151,214.16
  6. Step 6: Final answer
    x = 116,128.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.