Home / 155,772.63-214,825.10-102,038.04

Finding the Fourth Proportional to 155,772.63, 214,825.10 and 102,038.04

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Solution

The fourth proportional to 155,772.63, 214,825.10 and 102,038.04 is: 140,720.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,772.63 : 214,825.10 = 102,038.04 : x
  2. Step 2: Convert to fraction form
    155,772.63/214,825.10 = 102,038.04/x
  3. Step 3: Cross multiply
    155,772.63x = 214,825.10 × 102,038.04
  4. Step 4: Simplify right side
    155,772.63x = 21,920,331,636.61
  5. Step 5: Solve for x
    x = 21,920,331,636.61/155,772.63
  6. Step 6: Final answer
    x = 140,720.05

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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.