Home / 153,243.36-211,470.48-85,258.08

Finding the Fourth Proportional to 153,243.36, 211,470.48 and 85,258.08

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Solution

The fourth proportional to 153,243.36, 211,470.48 and 85,258.08 is: 117,653.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,243.36 : 211,470.48 = 85,258.08 : x
  2. Step 2: Convert to fraction form
    153,243.36/211,470.48 = 85,258.08/x
  3. Step 3: Cross multiply
    153,243.36x = 211,470.48 × 85,258.08
  4. Step 4: Simplify right side
    153,243.36x = 18,029,567,101.48
  5. Step 5: Solve for x
    x = 18,029,567,101.48/153,243.36
  6. Step 6: Final answer
    x = 117,653.17

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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.