Home / 115,113.45-158,850.38-63,428.94

Finding the Fourth Proportional to 115,113.45, 158,850.38 and 63,428.94

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Solution

The fourth proportional to 115,113.45, 158,850.38 and 63,428.94 is: 87,528.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,113.45 : 158,850.38 = 63,428.94 : x
  2. Step 2: Convert to fraction form
    115,113.45/158,850.38 = 63,428.94/x
  3. Step 3: Cross multiply
    115,113.45x = 158,850.38 × 63,428.94
  4. Step 4: Simplify right side
    115,113.45x = 10,075,711,380.57
  5. Step 5: Solve for x
    x = 10,075,711,380.57/115,113.45
  6. Step 6: Final answer
    x = 87,528.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.