Home / 103,215.42-154,774.32-40,065.79

Finding the Fourth Proportional to 103,215.42, 154,774.32 and 40,065.79

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Solution

The fourth proportional to 103,215.42, 154,774.32 and 40,065.79 is: 60,079.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,215.42 : 154,774.32 = 40,065.79 : x
  2. Step 2: Convert to fraction form
    103,215.42/154,774.32 = 40,065.79/x
  3. Step 3: Cross multiply
    103,215.42x = 154,774.32 × 40,065.79
  4. Step 4: Simplify right side
    103,215.42x = 6,201,155,402.51
  5. Step 5: Solve for x
    x = 6,201,155,402.51/103,215.42
  6. Step 6: Final answer
    x = 60,079.74

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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.