Home / 141,388.71-195,117.03-77,730.60

Finding the Fourth Proportional to 141,388.71, 195,117.03 and 77,730.60

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Solution

The fourth proportional to 141,388.71, 195,117.03 and 77,730.60 is: 107,268.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,388.71 : 195,117.03 = 77,730.60 : x
  2. Step 2: Convert to fraction form
    141,388.71/195,117.03 = 77,730.60/x
  3. Step 3: Cross multiply
    141,388.71x = 195,117.03 × 77,730.60
  4. Step 4: Simplify right side
    141,388.71x = 15,166,563,812.12
  5. Step 5: Solve for x
    x = 15,166,563,812.12/141,388.71
  6. Step 6: Final answer
    x = 107,268.56

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1.5x scale

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.