Home / 151,421.94-207,449.01-145,746.72

Finding the Fourth Proportional to 151,421.94, 207,449.01 and 145,746.72

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Solution

The fourth proportional to 151,421.94, 207,449.01 and 145,746.72 is: 199,673.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,421.94 : 207,449.01 = 145,746.72 : x
  2. Step 2: Convert to fraction form
    151,421.94/207,449.01 = 145,746.72/x
  3. Step 3: Cross multiply
    151,421.94x = 207,449.01 × 145,746.72
  4. Step 4: Simplify right side
    151,421.94x = 30,235,012,774.75
  5. Step 5: Solve for x
    x = 30,235,012,774.75/151,421.94
  6. Step 6: Final answer
    x = 199,673.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.