Home / 136,985.00-189,097.49-83,287.16

Finding the Fourth Proportional to 136,985.00, 189,097.49 and 83,287.16

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Solution

The fourth proportional to 136,985.00, 189,097.49 and 83,287.16 is: 114,971.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,985.00 : 189,097.49 = 83,287.16 : x
  2. Step 2: Convert to fraction form
    136,985.00/189,097.49 = 83,287.16/x
  3. Step 3: Cross multiply
    136,985.00x = 189,097.49 × 83,287.16
  4. Step 4: Simplify right side
    136,985.00x = 15,749,391,543.31
  5. Step 5: Solve for x
    x = 15,749,391,543.31/136,985.00
  6. Step 6: Final answer
    x = 114,971.65

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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.