Home / 139,916.60-193,085.16-76,254.36

Finding the Fourth Proportional to 139,916.60, 193,085.16 and 76,254.36

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Solution

The fourth proportional to 139,916.60, 193,085.16 and 76,254.36 is: 105,231.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,916.60 : 193,085.16 = 76,254.36 : x
  2. Step 2: Convert to fraction form
    139,916.60/193,085.16 = 76,254.36/x
  3. Step 3: Cross multiply
    139,916.60x = 193,085.16 × 76,254.36
  4. Step 4: Simplify right side
    139,916.60x = 14,723,585,301.30
  5. Step 5: Solve for x
    x = 14,723,585,301.30/139,916.60
  6. Step 6: Final answer
    x = 105,231.15

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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.