Home / 155,159.36-214,120.16-88,091.36

Finding the Fourth Proportional to 155,159.36, 214,120.16 and 88,091.36

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Solution

The fourth proportional to 155,159.36, 214,120.16 and 88,091.36 is: 121,566.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,159.36 : 214,120.16 = 88,091.36 : x
  2. Step 2: Convert to fraction form
    155,159.36/214,120.16 = 88,091.36/x
  3. Step 3: Cross multiply
    155,159.36x = 214,120.16 × 88,091.36
  4. Step 4: Simplify right side
    155,159.36x = 18,862,136,097.82
  5. Step 5: Solve for x
    x = 18,862,136,097.82/155,159.36
  6. Step 6: Final answer
    x = 121,566.21

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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.