Home / 98,458.98-136,057.32-80,547.45

Finding the Fourth Proportional to 98,458.98, 136,057.32 and 80,547.45

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Solution

The fourth proportional to 98,458.98, 136,057.32 and 80,547.45 is: 111,305.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,458.98 : 136,057.32 = 80,547.45 : x
  2. Step 2: Convert to fraction form
    98,458.98/136,057.32 = 80,547.45/x
  3. Step 3: Cross multiply
    98,458.98x = 136,057.32 × 80,547.45
  4. Step 4: Simplify right side
    98,458.98x = 10,959,070,179.83
  5. Step 5: Solve for x
    x = 10,959,070,179.83/98,458.98
  6. Step 6: Final answer
    x = 111,305.95

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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.