Home / 127,130.09-190,459.19-91,032.03

Finding the Fourth Proportional to 127,130.09, 190,459.19 and 91,032.03

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Solution

The fourth proportional to 127,130.09, 190,459.19 and 91,032.03 is: 136,379.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,130.09 : 190,459.19 = 91,032.03 : x
  2. Step 2: Convert to fraction form
    127,130.09/190,459.19 = 91,032.03/x
  3. Step 3: Cross multiply
    127,130.09x = 190,459.19 × 91,032.03
  4. Step 4: Simplify right side
    127,130.09x = 17,337,886,242.70
  5. Step 5: Solve for x
    x = 17,337,886,242.70/127,130.09
  6. Step 6: Final answer
    x = 136,379.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.