Home / 140,101.22-193,340.31-76,440.35

Finding the Fourth Proportional to 140,101.22, 193,340.31 and 76,440.35

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Solution

The fourth proportional to 140,101.22, 193,340.31 and 76,440.35 is: 105,488.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,101.22 : 193,340.31 = 76,440.35 : x
  2. Step 2: Convert to fraction form
    140,101.22/193,340.31 = 76,440.35/x
  3. Step 3: Cross multiply
    140,101.22x = 193,340.31 × 76,440.35
  4. Step 4: Simplify right side
    140,101.22x = 14,779,000,965.51
  5. Step 5: Solve for x
    x = 14,779,000,965.51/140,101.22
  6. Step 6: Final answer
    x = 105,488.02

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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.