Home / 155,126.16-214,075.44-87,144.48

Finding the Fourth Proportional to 155,126.16, 214,075.44 and 87,144.48

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Solution

The fourth proportional to 155,126.16, 214,075.44 and 87,144.48 is: 120,260.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,126.16 : 214,075.44 = 87,144.48 : x
  2. Step 2: Convert to fraction form
    155,126.16/214,075.44 = 87,144.48/x
  3. Step 3: Cross multiply
    155,126.16x = 214,075.44 × 87,144.48
  4. Step 4: Simplify right side
    155,126.16x = 18,655,492,899.57
  5. Step 5: Solve for x
    x = 18,655,492,899.57/155,126.16
  6. Step 6: Final answer
    x = 120,260.13

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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.