Home / 145,942.56-218,913.84-112,711.10

Finding the Fourth Proportional to 145,942.56, 218,913.84 and 112,711.10

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Solution

The fourth proportional to 145,942.56, 218,913.84 and 112,711.10 is: 169,066.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,942.56 : 218,913.84 = 112,711.10 : x
  2. Step 2: Convert to fraction form
    145,942.56/218,913.84 = 112,711.10/x
  3. Step 3: Cross multiply
    145,942.56x = 218,913.84 × 112,711.10
  4. Step 4: Simplify right side
    145,942.56x = 24,674,018,617.05
  5. Step 5: Solve for x
    x = 24,674,018,617.05/145,942.56
  6. Step 6: Final answer
    x = 169,066.64

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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.