Home / 121,127.90-181,580.07-65,007.32

Finding the Fourth Proportional to 121,127.90, 181,580.07 and 65,007.32

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Solution

The fourth proportional to 121,127.90, 181,580.07 and 65,007.32 is: 97,450.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,127.90 : 181,580.07 = 65,007.32 : x
  2. Step 2: Convert to fraction form
    121,127.90/181,580.07 = 65,007.32/x
  3. Step 3: Cross multiply
    121,127.90x = 181,580.07 × 65,007.32
  4. Step 4: Simplify right side
    121,127.90x = 11,804,033,716.11
  5. Step 5: Solve for x
    x = 11,804,033,716.11/121,127.90
  6. Step 6: Final answer
    x = 97,450.99

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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.