Home / 144,023.40-215,937.90-76,566.60

Finding the Fourth Proportional to 144,023.40, 215,937.90 and 76,566.60

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Solution

The fourth proportional to 144,023.40, 215,937.90 and 76,566.60 is: 114,798.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,023.40 : 215,937.90 = 76,566.60 : x
  2. Step 2: Convert to fraction form
    144,023.40/215,937.90 = 76,566.60/x
  3. Step 3: Cross multiply
    144,023.40x = 215,937.90 × 76,566.60
  4. Step 4: Simplify right side
    144,023.40x = 16,533,630,814.14
  5. Step 5: Solve for x
    x = 16,533,630,814.14/144,023.40
  6. Step 6: Final answer
    x = 114,798.23

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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.