Home / 105,028.45-157,401.95-98,302.39

Finding the Fourth Proportional to 105,028.45, 157,401.95 and 98,302.39

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Solution

The fourth proportional to 105,028.45, 157,401.95 and 98,302.39 is: 147,321.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,028.45 : 157,401.95 = 98,302.39 : x
  2. Step 2: Convert to fraction form
    105,028.45/157,401.95 = 98,302.39/x
  3. Step 3: Cross multiply
    105,028.45x = 157,401.95 × 98,302.39
  4. Step 4: Simplify right side
    105,028.45x = 15,472,986,597.14
  5. Step 5: Solve for x
    x = 15,472,986,597.14/105,028.45
  6. Step 6: Final answer
    x = 147,321.87

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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.