Home / 153,999.44-212,516.98-86,017.38

Finding the Fourth Proportional to 153,999.44, 212,516.98 and 86,017.38

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Solution

The fourth proportional to 153,999.44, 212,516.98 and 86,017.38 is: 118,702.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,999.44 : 212,516.98 = 86,017.38 : x
  2. Step 2: Convert to fraction form
    153,999.44/212,516.98 = 86,017.38/x
  3. Step 3: Cross multiply
    153,999.44x = 212,516.98 × 86,017.38
  4. Step 4: Simplify right side
    153,999.44x = 18,280,153,825.11
  5. Step 5: Solve for x
    x = 18,280,153,825.11/153,999.44
  6. Step 6: Final answer
    x = 118,702.73

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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.