Home / 99,962.28-149,968.04-70,437.78

Finding the Fourth Proportional to 99,962.28, 149,968.04 and 70,437.78

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Solution

The fourth proportional to 99,962.28, 149,968.04 and 70,437.78 is: 105,674.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,962.28 : 149,968.04 = 70,437.78 : x
  2. Step 2: Convert to fraction form
    99,962.28/149,968.04 = 70,437.78/x
  3. Step 3: Cross multiply
    99,962.28x = 149,968.04 × 70,437.78
  4. Step 4: Simplify right side
    99,962.28x = 10,563,415,456.36
  5. Step 5: Solve for x
    x = 10,563,415,456.36/99,962.28
  6. Step 6: Final answer
    x = 105,674.01

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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.