Home / 141,800.06-195,688.26-78,141.95

Finding the Fourth Proportional to 141,800.06, 195,688.26 and 78,141.95

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Solution

The fourth proportional to 141,800.06, 195,688.26 and 78,141.95 is: 107,838.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,800.06 : 195,688.26 = 78,141.95 : x
  2. Step 2: Convert to fraction form
    141,800.06/195,688.26 = 78,141.95/x
  3. Step 3: Cross multiply
    141,800.06x = 195,688.26 × 78,141.95
  4. Step 4: Simplify right side
    141,800.06x = 15,291,462,228.51
  5. Step 5: Solve for x
    x = 15,291,462,228.51/141,800.06
  6. Step 6: Final answer
    x = 107,838.19

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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.