Home / 145,923.72-218,886.18-40,742.38

Finding the Fourth Proportional to 145,923.72, 218,886.18 and 40,742.38

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Solution

The fourth proportional to 145,923.72, 218,886.18 and 40,742.38 is: 61,113.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,923.72 : 218,886.18 = 40,742.38 : x
  2. Step 2: Convert to fraction form
    145,923.72/218,886.18 = 40,742.38/x
  3. Step 3: Cross multiply
    145,923.72x = 218,886.18 × 40,742.38
  4. Step 4: Simplify right side
    145,923.72x = 8,917,943,922.31
  5. Step 5: Solve for x
    x = 8,917,943,922.31/145,923.72
  6. Step 6: Final answer
    x = 61,113.74

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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.