Home / 113,861.05-155,988.93-109,603.07

Finding the Fourth Proportional to 113,861.05, 155,988.93 and 109,603.07

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Solution

The fourth proportional to 113,861.05, 155,988.93 and 109,603.07 is: 150,155.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,861.05 : 155,988.93 = 109,603.07 : x
  2. Step 2: Convert to fraction form
    113,861.05/155,988.93 = 109,603.07/x
  3. Step 3: Cross multiply
    113,861.05x = 155,988.93 × 109,603.07
  4. Step 4: Simplify right side
    113,861.05x = 17,096,865,213.52
  5. Step 5: Solve for x
    x = 17,096,865,213.52/113,861.05
  6. Step 6: Final answer
    x = 150,155.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.