Home / 141,345.47-195,048.51-77,683.32

Finding the Fourth Proportional to 141,345.47, 195,048.51 and 77,683.32

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Solution

The fourth proportional to 141,345.47, 195,048.51 and 77,683.32 is: 107,198.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,345.47 : 195,048.51 = 77,683.32 : x
  2. Step 2: Convert to fraction form
    141,345.47/195,048.51 = 77,683.32/x
  3. Step 3: Cross multiply
    141,345.47x = 195,048.51 × 77,683.32
  4. Step 4: Simplify right side
    141,345.47x = 15,152,015,526.54
  5. Step 5: Solve for x
    x = 15,152,015,526.54/141,345.47
  6. Step 6: Final answer
    x = 107,198.45

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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.