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Finding the Fourth Proportional to 104,000.89, 155,695.15 and 64,430.77

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Solution

The fourth proportional to 104,000.89, 155,695.15 and 64,430.77 is: 96,456.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,000.89 : 155,695.15 = 64,430.77 : x
  2. Step 2: Convert to fraction form
    104,000.89/155,695.15 = 64,430.77/x
  3. Step 3: Cross multiply
    104,000.89x = 155,695.15 × 64,430.77
  4. Step 4: Simplify right side
    104,000.89x = 10,031,558,399.77
  5. Step 5: Solve for x
    x = 10,031,558,399.77/104,000.89
  6. Step 6: Final answer
    x = 96,456.47

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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.