Home / 141,365.76-195,080.40-77,703.36

Finding the Fourth Proportional to 141,365.76, 195,080.40 and 77,703.36

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Solution

The fourth proportional to 141,365.76, 195,080.40 and 77,703.36 is: 107,228.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,365.76 : 195,080.40 = 77,703.36 : x
  2. Step 2: Convert to fraction form
    141,365.76/195,080.40 = 77,703.36/x
  3. Step 3: Cross multiply
    141,365.76x = 195,080.40 × 77,703.36
  4. Step 4: Simplify right side
    141,365.76x = 15,158,402,550.14
  5. Step 5: Solve for x
    x = 15,158,402,550.14/141,365.76
  6. Step 6: Final answer
    x = 107,228.25

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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.