Home / 139,409.33-192,386.63-75,748.19

Finding the Fourth Proportional to 139,409.33, 192,386.63 and 75,748.19

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Solution

The fourth proportional to 139,409.33, 192,386.63 and 75,748.19 is: 104,533.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,409.33 : 192,386.63 = 75,748.19 : x
  2. Step 2: Convert to fraction form
    139,409.33/192,386.63 = 75,748.19/x
  3. Step 3: Cross multiply
    139,409.33x = 192,386.63 × 75,748.19
  4. Step 4: Simplify right side
    139,409.33x = 14,572,938,623.96
  5. Step 5: Solve for x
    x = 14,572,938,623.96/139,409.33
  6. Step 6: Final answer
    x = 104,533.45

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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.