Home / 106,343.80-159,515.70-99,345.40

Finding the Fourth Proportional to 106,343.80, 159,515.70 and 99,345.40

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Solution

The fourth proportional to 106,343.80, 159,515.70 and 99,345.40 is: 149,018.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,343.80 : 159,515.70 = 99,345.40 : x
  2. Step 2: Convert to fraction form
    106,343.80/159,515.70 = 99,345.40/x
  3. Step 3: Cross multiply
    106,343.80x = 159,515.70 × 99,345.40
  4. Step 4: Simplify right side
    106,343.80x = 15,847,151,022.78
  5. Step 5: Solve for x
    x = 15,847,151,022.78/106,343.80
  6. Step 6: Final answer
    x = 149,018.10

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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.