Home / 145,397.55-200,647.50-80,867.37

Finding the Fourth Proportional to 145,397.55, 200,647.50 and 80,867.37

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Solution

The fourth proportional to 145,397.55, 200,647.50 and 80,867.37 is: 111,596.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,397.55 : 200,647.50 = 80,867.37 : x
  2. Step 2: Convert to fraction form
    145,397.55/200,647.50 = 80,867.37/x
  3. Step 3: Cross multiply
    145,397.55x = 200,647.50 × 80,867.37
  4. Step 4: Simplify right side
    145,397.55x = 16,225,835,622.08
  5. Step 5: Solve for x
    x = 16,225,835,622.08/145,397.55
  6. Step 6: Final answer
    x = 111,596.35

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.