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Finding the Fourth Proportional to 145,895.93, 218,491.20 and 120,750.89

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Solution

The fourth proportional to 145,895.93, 218,491.20 and 120,750.89 is: 180,834.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,895.93 : 218,491.20 = 120,750.89 : x
  2. Step 2: Convert to fraction form
    145,895.93/218,491.20 = 120,750.89/x
  3. Step 3: Cross multiply
    145,895.93x = 218,491.20 × 120,750.89
  4. Step 4: Simplify right side
    145,895.93x = 26,383,007,403.40
  5. Step 5: Solve for x
    x = 26,383,007,403.40/145,895.93
  6. Step 6: Final answer
    x = 180,834.44

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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.