Home / 141,155.80-194,782.05-83,785.32

Finding the Fourth Proportional to 141,155.80, 194,782.05 and 83,785.32

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Solution

The fourth proportional to 141,155.80, 194,782.05 and 83,785.32 is: 115,616.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,155.80 : 194,782.05 = 83,785.32 : x
  2. Step 2: Convert to fraction form
    141,155.80/194,782.05 = 83,785.32/x
  3. Step 3: Cross multiply
    141,155.80x = 194,782.05 × 83,785.32
  4. Step 4: Simplify right side
    141,155.80x = 16,319,876,389.51
  5. Step 5: Solve for x
    x = 16,319,876,389.51/141,155.80
  6. Step 6: Final answer
    x = 115,616.05

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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.