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Finding the Fourth Proportional to 104,000.81, 156,089.72 and 40,865.08

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Solution

The fourth proportional to 104,000.81, 156,089.72 and 40,865.08 is: 61,332.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,000.81 : 156,089.72 = 40,865.08 : x
  2. Step 2: Convert to fraction form
    104,000.81/156,089.72 = 40,865.08/x
  3. Step 3: Cross multiply
    104,000.81x = 156,089.72 × 40,865.08
  4. Step 4: Simplify right side
    104,000.81x = 6,378,619,281.12
  5. Step 5: Solve for x
    x = 6,378,619,281.12/104,000.81
  6. Step 6: Final answer
    x = 61,332.40

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1.5x scale

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.