Home / 99,962.54-149,968.41-70,438.04

Finding the Fourth Proportional to 99,962.54, 149,968.41 and 70,438.04

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Solution

The fourth proportional to 99,962.54, 149,968.41 and 70,438.04 is: 105,674.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,962.54 : 149,968.41 = 70,438.04 : x
  2. Step 2: Convert to fraction form
    99,962.54/149,968.41 = 70,438.04/x
  3. Step 3: Cross multiply
    99,962.54x = 149,968.41 × 70,438.04
  4. Step 4: Simplify right side
    99,962.54x = 10,563,480,862.32
  5. Step 5: Solve for x
    x = 10,563,480,862.32/99,962.54
  6. Step 6: Final answer
    x = 105,674.39

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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.