Home / 98,575.46-147,968.40-42,443.36

Finding the Fourth Proportional to 98,575.46, 147,968.40 and 42,443.36

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Solution

The fourth proportional to 98,575.46, 147,968.40 and 42,443.36 is: 63,710.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,575.46 : 147,968.40 = 42,443.36 : x
  2. Step 2: Convert to fraction form
    98,575.46/147,968.40 = 42,443.36/x
  3. Step 3: Cross multiply
    98,575.46x = 147,968.40 × 42,443.36
  4. Step 4: Simplify right side
    98,575.46x = 6,280,276,069.82
  5. Step 5: Solve for x
    x = 6,280,276,069.82/98,575.46
  6. Step 6: Final answer
    x = 63,710.34

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.