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Finding the Fourth Proportional to 140,431.88, 210,461.52 and 61,460.12

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Solution

The fourth proportional to 140,431.88, 210,461.52 and 61,460.12 is: 92,108.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,431.88 : 210,461.52 = 61,460.12 : x
  2. Step 2: Convert to fraction form
    140,431.88/210,461.52 = 61,460.12/x
  3. Step 3: Cross multiply
    140,431.88x = 210,461.52 × 61,460.12
  4. Step 4: Simplify right side
    140,431.88x = 12,934,991,031.21
  5. Step 5: Solve for x
    x = 12,934,991,031.21/140,431.88
  6. Step 6: Final answer
    x = 92,108.65

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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.