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Finding the Fourth Proportional to 420,070.93, 630,108.68 and 104,527.85

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Solution

The fourth proportional to 420,070.93, 630,108.68 and 104,527.85 is: 156,792.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,070.93 : 630,108.68 = 104,527.85 : x
  2. Step 2: Convert to fraction form
    420,070.93/630,108.68 = 104,527.85/x
  3. Step 3: Cross multiply
    420,070.93x = 630,108.68 × 104,527.85
  4. Step 4: Simplify right side
    420,070.93x = 65,863,901,913.56
  5. Step 5: Solve for x
    x = 65,863,901,913.56/420,070.93
  6. Step 6: Final answer
    x = 156,792.34

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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.