Home / 145,538.64-218,307.99-40,357.61

Finding the Fourth Proportional to 145,538.64, 218,307.99 and 40,357.61

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Solution

The fourth proportional to 145,538.64, 218,307.99 and 40,357.61 is: 60,536.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,538.64 : 218,307.99 = 40,357.61 : x
  2. Step 2: Convert to fraction form
    145,538.64/218,307.99 = 40,357.61/x
  3. Step 3: Cross multiply
    145,538.64x = 218,307.99 × 40,357.61
  4. Step 4: Simplify right side
    145,538.64x = 8,810,388,598.76
  5. Step 5: Solve for x
    x = 8,810,388,598.76/145,538.64
  6. Step 6: Final answer
    x = 60,536.42

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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.