Home / 153,165.12-211,365.60-86,096.64

Finding the Fourth Proportional to 153,165.12, 211,365.60 and 86,096.64

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Solution

The fourth proportional to 153,165.12, 211,365.60 and 86,096.64 is: 118,812.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,165.12 : 211,365.60 = 86,096.64 : x
  2. Step 2: Convert to fraction form
    153,165.12/211,365.60 = 86,096.64/x
  3. Step 3: Cross multiply
    153,165.12x = 211,365.60 × 86,096.64
  4. Step 4: Simplify right side
    153,165.12x = 18,197,867,971.58
  5. Step 5: Solve for x
    x = 18,197,867,971.58/153,165.12
  6. Step 6: Final answer
    x = 118,812.09

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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.