Home / 153,821.00-212,272.58-85,837.25

Finding the Fourth Proportional to 153,821.00, 212,272.58 and 85,837.25

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Solution

The fourth proportional to 153,821.00, 212,272.58 and 85,837.25 is: 118,455.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,821.00 : 212,272.58 = 85,837.25 : x
  2. Step 2: Convert to fraction form
    153,821.00/212,272.58 = 85,837.25/x
  3. Step 3: Cross multiply
    153,821.00x = 212,272.58 × 85,837.25
  4. Step 4: Simplify right side
    153,821.00x = 18,220,894,619.10
  5. Step 5: Solve for x
    x = 18,220,894,619.10/153,821.00
  6. Step 6: Final answer
    x = 118,455.19

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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.