Home / 140,129.12-210,192.27-64,206.12

Finding the Fourth Proportional to 140,129.12, 210,192.27 and 64,206.12

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Solution

The fourth proportional to 140,129.12, 210,192.27 and 64,206.12 is: 96,308.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,129.12 : 210,192.27 = 64,206.12 : x
  2. Step 2: Convert to fraction form
    140,129.12/210,192.27 = 64,206.12/x
  3. Step 3: Cross multiply
    140,129.12x = 210,192.27 × 64,206.12
  4. Step 4: Simplify right side
    140,129.12x = 13,495,630,110.69
  5. Step 5: Solve for x
    x = 13,495,630,110.69/140,129.12
  6. Step 6: Final answer
    x = 96,308.54

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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.