Home / 140,132.48-193,386.90-76,474.36

Finding the Fourth Proportional to 140,132.48, 193,386.90 and 76,474.36

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Solution

The fourth proportional to 140,132.48, 193,386.90 and 76,474.36 is: 105,536.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,132.48 : 193,386.90 = 76,474.36 : x
  2. Step 2: Convert to fraction form
    140,132.48/193,386.90 = 76,474.36/x
  3. Step 3: Cross multiply
    140,132.48x = 193,386.90 × 76,474.36
  4. Step 4: Simplify right side
    140,132.48x = 14,789,139,409.88
  5. Step 5: Solve for x
    x = 14,789,139,409.88/140,132.48
  6. Step 6: Final answer
    x = 105,536.84

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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.