Home / 151,212.16-208,680.96-84,145.60

Finding the Fourth Proportional to 151,212.16, 208,680.96 and 84,145.60

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Solution

The fourth proportional to 151,212.16, 208,680.96 and 84,145.60 is: 116,125.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,212.16 : 208,680.96 = 84,145.60 : x
  2. Step 2: Convert to fraction form
    151,212.16/208,680.96 = 84,145.60/x
  3. Step 3: Cross multiply
    151,212.16x = 208,680.96 × 84,145.60
  4. Step 4: Simplify right side
    151,212.16x = 17,559,584,587.78
  5. Step 5: Solve for x
    x = 17,559,584,587.78/151,212.16
  6. Step 6: Final answer
    x = 116,125.48

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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.