Home / 98,001.51-135,177.57-77,826.39

Finding the Fourth Proportional to 98,001.51, 135,177.57 and 77,826.39

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Solution

The fourth proportional to 98,001.51, 135,177.57 and 77,826.39 is: 107,349.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,001.51 : 135,177.57 = 77,826.39 : x
  2. Step 2: Convert to fraction form
    98,001.51/135,177.57 = 77,826.39/x
  3. Step 3: Cross multiply
    98,001.51x = 135,177.57 × 77,826.39
  4. Step 4: Simplify right side
    98,001.51x = 10,520,382,282.07
  5. Step 5: Solve for x
    x = 10,520,382,282.07/98,001.51
  6. Step 6: Final answer
    x = 107,349.19

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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.