Home / 145,539.90-218,319.18-45,704.16

Finding the Fourth Proportional to 145,539.90, 218,319.18 and 45,704.16

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Solution

The fourth proportional to 145,539.90, 218,319.18 and 45,704.16 is: 68,559.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,539.90 : 218,319.18 = 45,704.16 : x
  2. Step 2: Convert to fraction form
    145,539.90/218,319.18 = 45,704.16/x
  3. Step 3: Cross multiply
    145,539.90x = 218,319.18 × 45,704.16
  4. Step 4: Simplify right side
    145,539.90x = 9,978,094,733.79
  5. Step 5: Solve for x
    x = 9,978,094,733.79/145,539.90
  6. Step 6: Final answer
    x = 68,559.17

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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.