Home / 140,118.12-210,102.96-61,140.12

Finding the Fourth Proportional to 140,118.12, 210,102.96 and 61,140.12

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Solution

The fourth proportional to 140,118.12, 210,102.96 and 61,140.12 is: 91,677.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,118.12 : 210,102.96 = 61,140.12 : x
  2. Step 2: Convert to fraction form
    140,118.12/210,102.96 = 61,140.12/x
  3. Step 3: Cross multiply
    140,118.12x = 210,102.96 × 61,140.12
  4. Step 4: Simplify right side
    140,118.12x = 12,845,720,186.76
  5. Step 5: Solve for x
    x = 12,845,720,186.76/140,118.12
  6. Step 6: Final answer
    x = 91,677.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.