Home / 121,211.90-181,569.98-98,802.44

Finding the Fourth Proportional to 121,211.90, 181,569.98 and 98,802.44

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Solution

The fourth proportional to 121,211.90, 181,569.98 and 98,802.44 is: 148,001.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,211.90 : 181,569.98 = 98,802.44 : x
  2. Step 2: Convert to fraction form
    121,211.90/181,569.98 = 98,802.44/x
  3. Step 3: Cross multiply
    121,211.90x = 181,569.98 × 98,802.44
  4. Step 4: Simplify right side
    121,211.90x = 17,939,557,054.75
  5. Step 5: Solve for x
    x = 17,939,557,054.75/121,211.90
  6. Step 6: Final answer
    x = 148,001.62

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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.