Home / 145,719.66-218,579.88-40,538.64

Finding the Fourth Proportional to 145,719.66, 218,579.88 and 40,538.64

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Solution

The fourth proportional to 145,719.66, 218,579.88 and 40,538.64 is: 60,808.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,719.66 : 218,579.88 = 40,538.64 : x
  2. Step 2: Convert to fraction form
    145,719.66/218,579.88 = 40,538.64/x
  3. Step 3: Cross multiply
    145,719.66x = 218,579.88 × 40,538.64
  4. Step 4: Simplify right side
    145,719.66x = 8,860,931,066.56
  5. Step 5: Solve for x
    x = 8,860,931,066.56/145,719.66
  6. Step 6: Final answer
    x = 60,808.07

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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.