Home / 105,560.01-157,902.26-80,409.69

Finding the Fourth Proportional to 105,560.01, 157,902.26 and 80,409.69

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Solution

The fourth proportional to 105,560.01, 157,902.26 and 80,409.69 is: 120,281.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,560.01 : 157,902.26 = 80,409.69 : x
  2. Step 2: Convert to fraction form
    105,560.01/157,902.26 = 80,409.69/x
  3. Step 3: Cross multiply
    105,560.01x = 157,902.26 × 80,409.69
  4. Step 4: Simplify right side
    105,560.01x = 12,696,871,374.85
  5. Step 5: Solve for x
    x = 12,696,871,374.85/105,560.01
  6. Step 6: Final answer
    x = 120,281.07

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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.