Home / 153,675.45-212,071.21-85,693.25

Finding the Fourth Proportional to 153,675.45, 212,071.21 and 85,693.25

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Solution

The fourth proportional to 153,675.45, 212,071.21 and 85,693.25 is: 118,256.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,675.45 : 212,071.21 = 85,693.25 : x
  2. Step 2: Convert to fraction form
    153,675.45/212,071.21 = 85,693.25/x
  3. Step 3: Cross multiply
    153,675.45x = 212,071.21 × 85,693.25
  4. Step 4: Simplify right side
    153,675.45x = 18,173,071,532.28
  5. Step 5: Solve for x
    x = 18,173,071,532.28/153,675.45
  6. Step 6: Final answer
    x = 118,256.18

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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.