Home / 134,661.15-185,909.72-89,400.24

Finding the Fourth Proportional to 134,661.15, 185,909.72 and 89,400.24

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Solution

The fourth proportional to 134,661.15, 185,909.72 and 89,400.24 is: 123,423.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,661.15 : 185,909.72 = 89,400.24 : x
  2. Step 2: Convert to fraction form
    134,661.15/185,909.72 = 89,400.24/x
  3. Step 3: Cross multiply
    134,661.15x = 185,909.72 × 89,400.24
  4. Step 4: Simplify right side
    134,661.15x = 16,620,373,139.33
  5. Step 5: Solve for x
    x = 16,620,373,139.33/134,661.15
  6. Step 6: Final answer
    x = 123,423.67

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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.