Home / 99,954.03-149,955.63-70,429.53

Finding the Fourth Proportional to 99,954.03, 149,955.63 and 70,429.53

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Solution

The fourth proportional to 99,954.03, 149,955.63 and 70,429.53 is: 105,661.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,954.03 : 149,955.63 = 70,429.53 : x
  2. Step 2: Convert to fraction form
    99,954.03/149,955.63 = 70,429.53/x
  3. Step 3: Cross multiply
    99,954.03x = 149,955.63 × 70,429.53
  4. Step 4: Simplify right side
    99,954.03x = 10,561,304,541.75
  5. Step 5: Solve for x
    x = 10,561,304,541.75/99,954.03
  6. Step 6: Final answer
    x = 105,661.62

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1.5x scale

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.