Home / 153,702.24-212,108.94-85,725.24

Finding the Fourth Proportional to 153,702.24, 212,108.94 and 85,725.24

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Solution

The fourth proportional to 153,702.24, 212,108.94 and 85,725.24 is: 118,300.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,702.24 : 212,108.94 = 85,725.24 : x
  2. Step 2: Convert to fraction form
    153,702.24/212,108.94 = 85,725.24/x
  3. Step 3: Cross multiply
    153,702.24x = 212,108.94 × 85,725.24
  4. Step 4: Simplify right side
    153,702.24x = 18,183,089,787.65
  5. Step 5: Solve for x
    x = 18,183,089,787.65/153,702.24
  6. Step 6: Final answer
    x = 118,300.75

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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.