Home / 155,159.33-214,126.48-87,176.43

Finding the Fourth Proportional to 155,159.33, 214,126.48 and 87,176.43

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Solution

The fourth proportional to 155,159.33, 214,126.48 and 87,176.43 is: 120,307.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,159.33 : 214,126.48 = 87,176.43 : x
  2. Step 2: Convert to fraction form
    155,159.33/214,126.48 = 87,176.43/x
  3. Step 3: Cross multiply
    155,159.33x = 214,126.48 × 87,176.43
  4. Step 4: Simplify right side
    155,159.33x = 18,666,782,094.87
  5. Step 5: Solve for x
    x = 18,666,782,094.87/155,159.33
  6. Step 6: Final answer
    x = 120,307.18

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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.