Home / 179,072.64-247,111.20-107,438.40

Finding the Fourth Proportional to 179,072.64, 247,111.20 and 107,438.40

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Solution

The fourth proportional to 179,072.64, 247,111.20 and 107,438.40 is: 148,259.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,072.64 : 247,111.20 = 107,438.40 : x
  2. Step 2: Convert to fraction form
    179,072.64/247,111.20 = 107,438.40/x
  3. Step 3: Cross multiply
    179,072.64x = 247,111.20 × 107,438.40
  4. Step 4: Simplify right side
    179,072.64x = 26,549,231,950.08
  5. Step 5: Solve for x
    x = 26,549,231,950.08/179,072.64
  6. Step 6: Final answer
    x = 148,259.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.