Home / 133,404.64-199,876.08-70,130.56

Finding the Fourth Proportional to 133,404.64, 199,876.08 and 70,130.56

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Solution

The fourth proportional to 133,404.64, 199,876.08 and 70,130.56 is: 105,074.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,404.64 : 199,876.08 = 70,130.56 : x
  2. Step 2: Convert to fraction form
    133,404.64/199,876.08 = 70,130.56/x
  3. Step 3: Cross multiply
    133,404.64x = 199,876.08 × 70,130.56
  4. Step 4: Simplify right side
    133,404.64x = 14,017,421,421.00
  5. Step 5: Solve for x
    x = 14,017,421,421.00/133,404.64
  6. Step 6: Final answer
    x = 105,074.47

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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.