Home / 139,948.12-193,130.44-76,285.94

Finding the Fourth Proportional to 139,948.12, 193,130.44 and 76,285.94

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Solution

The fourth proportional to 139,948.12, 193,130.44 and 76,285.94 is: 105,275.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,948.12 : 193,130.44 = 76,285.94 : x
  2. Step 2: Convert to fraction form
    139,948.12/193,130.44 = 76,285.94/x
  3. Step 3: Cross multiply
    139,948.12x = 193,130.44 × 76,285.94
  4. Step 4: Simplify right side
    139,948.12x = 14,733,137,158.01
  5. Step 5: Solve for x
    x = 14,733,137,158.01/139,948.12
  6. Step 6: Final answer
    x = 105,275.71

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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.