Home / 105,299.34-145,308.08-57,552.73

Finding the Fourth Proportional to 105,299.34, 145,308.08 and 57,552.73

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Solution

The fourth proportional to 105,299.34, 145,308.08 and 57,552.73 is: 79,420.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,299.34 : 145,308.08 = 57,552.73 : x
  2. Step 2: Convert to fraction form
    105,299.34/145,308.08 = 57,552.73/x
  3. Step 3: Cross multiply
    105,299.34x = 145,308.08 × 57,552.73
  4. Step 4: Simplify right side
    105,299.34x = 8,362,876,151.94
  5. Step 5: Solve for x
    x = 8,362,876,151.94/105,299.34
  6. Step 6: Final answer
    x = 79,420.02

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1.5x scale

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.