Home / 139,892.08-193,048.56-76,230.40

Finding the Fourth Proportional to 139,892.08, 193,048.56 and 76,230.40

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Solution

The fourth proportional to 139,892.08, 193,048.56 and 76,230.40 is: 105,196.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,892.08 : 193,048.56 = 76,230.40 : x
  2. Step 2: Convert to fraction form
    139,892.08/193,048.56 = 76,230.40/x
  3. Step 3: Cross multiply
    139,892.08x = 193,048.56 × 76,230.40
  4. Step 4: Simplify right side
    139,892.08x = 14,716,168,948.22
  5. Step 5: Solve for x
    x = 14,716,168,948.22/139,892.08
  6. Step 6: Final answer
    x = 105,196.58

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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.