Home / 127,389.48-191,058.68-121,066.60

Finding the Fourth Proportional to 127,389.48, 191,058.68 and 121,066.60

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Solution

The fourth proportional to 127,389.48, 191,058.68 and 121,066.60 is: 181,575.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,389.48 : 191,058.68 = 121,066.60 : x
  2. Step 2: Convert to fraction form
    127,389.48/191,058.68 = 121,066.60/x
  3. Step 3: Cross multiply
    127,389.48x = 191,058.68 × 121,066.60
  4. Step 4: Simplify right side
    127,389.48x = 23,130,824,788.09
  5. Step 5: Solve for x
    x = 23,130,824,788.09/127,389.48
  6. Step 6: Final answer
    x = 181,575.63

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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.