Home / 137,902.80-190,303.38-76,652.76

Finding the Fourth Proportional to 137,902.80, 190,303.38 and 76,652.76

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Solution

The fourth proportional to 137,902.80, 190,303.38 and 76,652.76 is: 105,779.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,902.80 : 190,303.38 = 76,652.76 : x
  2. Step 2: Convert to fraction form
    137,902.80/190,303.38 = 76,652.76/x
  3. Step 3: Cross multiply
    137,902.80x = 190,303.38 × 76,652.76
  4. Step 4: Simplify right side
    137,902.80x = 14,587,279,314.33
  5. Step 5: Solve for x
    x = 14,587,279,314.33/137,902.80
  6. Step 6: Final answer
    x = 105,779.43

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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.