Home / 145,385.24-218,088.27-38,768.64

Finding the Fourth Proportional to 145,385.24, 218,088.27 and 38,768.64

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Solution

The fourth proportional to 145,385.24, 218,088.27 and 38,768.64 is: 58,155.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,385.24 : 218,088.27 = 38,768.64 : x
  2. Step 2: Convert to fraction form
    145,385.24/218,088.27 = 38,768.64/x
  3. Step 3: Cross multiply
    145,385.24x = 218,088.27 × 38,768.64
  4. Step 4: Simplify right side
    145,385.24x = 8,454,985,627.85
  5. Step 5: Solve for x
    x = 8,454,985,627.85/145,385.24
  6. Step 6: Final answer
    x = 58,155.74

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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.