Home / 141,802.19-195,688.33-78,142.26

Finding the Fourth Proportional to 141,802.19, 195,688.33 and 78,142.26

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Solution

The fourth proportional to 141,802.19, 195,688.33 and 78,142.26 is: 107,837.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,802.19 : 195,688.33 = 78,142.26 : x
  2. Step 2: Convert to fraction form
    141,802.19/195,688.33 = 78,142.26/x
  3. Step 3: Cross multiply
    141,802.19x = 195,688.33 × 78,142.26
  4. Step 4: Simplify right side
    141,802.19x = 15,291,528,166.47
  5. Step 5: Solve for x
    x = 15,291,528,166.47/141,802.19
  6. Step 6: Final answer
    x = 107,837.04

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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.