Home / 141,458.81-211,085.60-128,883.56

Finding the Fourth Proportional to 141,458.81, 211,085.60 and 128,883.56

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Solution

The fourth proportional to 141,458.81, 211,085.60 and 128,883.56 is: 192,320.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,458.81 : 211,085.60 = 128,883.56 : x
  2. Step 2: Convert to fraction form
    141,458.81/211,085.60 = 128,883.56/x
  3. Step 3: Cross multiply
    141,458.81x = 211,085.60 × 128,883.56
  4. Step 4: Simplify right side
    141,458.81x = 27,205,461,892.89
  5. Step 5: Solve for x
    x = 27,205,461,892.89/141,458.81
  6. Step 6: Final answer
    x = 192,320.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.