Home / 98,942.88-136,547.82-55,907.46

Finding the Fourth Proportional to 98,942.88, 136,547.82 and 55,907.46

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Solution

The fourth proportional to 98,942.88, 136,547.82 and 55,907.46 is: 77,156.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,942.88 : 136,547.82 = 55,907.46 : x
  2. Step 2: Convert to fraction form
    98,942.88/136,547.82 = 55,907.46/x
  3. Step 3: Cross multiply
    98,942.88x = 136,547.82 × 55,907.46
  4. Step 4: Simplify right side
    98,942.88x = 7,634,041,784.74
  5. Step 5: Solve for x
    x = 7,634,041,784.74/98,942.88
  6. Step 6: Final answer
    x = 77,156.05

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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.