Home / 141,530.54-195,309.35-77,869.40

Finding the Fourth Proportional to 141,530.54, 195,309.35 and 77,869.40

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Solution

The fourth proportional to 141,530.54, 195,309.35 and 77,869.40 is: 107,458.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,530.54 : 195,309.35 = 77,869.40 : x
  2. Step 2: Convert to fraction form
    141,530.54/195,309.35 = 77,869.40/x
  3. Step 3: Cross multiply
    141,530.54x = 195,309.35 × 77,869.40
  4. Step 4: Simplify right side
    141,530.54x = 15,208,621,898.89
  5. Step 5: Solve for x
    x = 15,208,621,898.89/141,530.54
  6. Step 6: Final answer
    x = 107,458.23

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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.