Home / 140,012.02-193,215.81-76,348.45

Finding the Fourth Proportional to 140,012.02, 193,215.81 and 76,348.45

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Solution

The fourth proportional to 140,012.02, 193,215.81 and 76,348.45 is: 105,360.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,012.02 : 193,215.81 = 76,348.45 : x
  2. Step 2: Convert to fraction form
    140,012.02/193,215.81 = 76,348.45/x
  3. Step 3: Cross multiply
    140,012.02x = 193,215.81 × 76,348.45
  4. Step 4: Simplify right side
    140,012.02x = 14,751,727,608.99
  5. Step 5: Solve for x
    x = 14,751,727,608.99/140,012.02
  6. Step 6: Final answer
    x = 105,360.44

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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.