Home / 140,247.12-193,543.80-76,587.36

Finding the Fourth Proportional to 140,247.12, 193,543.80 and 76,587.36

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Solution

The fourth proportional to 140,247.12, 193,543.80 and 76,587.36 is: 105,692.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,247.12 : 193,543.80 = 76,587.36 : x
  2. Step 2: Convert to fraction form
    140,247.12/193,543.80 = 76,587.36/x
  3. Step 3: Cross multiply
    140,247.12x = 193,543.80 × 76,587.36
  4. Step 4: Simplify right side
    140,247.12x = 14,823,008,686.37
  5. Step 5: Solve for x
    x = 14,823,008,686.37/140,247.12
  6. Step 6: Final answer
    x = 105,692.07

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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.