Home / 114,145.38-157,671.14-87,615.72

Finding the Fourth Proportional to 114,145.38, 157,671.14 and 87,615.72

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Solution

The fourth proportional to 114,145.38, 157,671.14 and 87,615.72 is: 121,025.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,145.38 : 157,671.14 = 87,615.72 : x
  2. Step 2: Convert to fraction form
    114,145.38/157,671.14 = 87,615.72/x
  3. Step 3: Cross multiply
    114,145.38x = 157,671.14 × 87,615.72
  4. Step 4: Simplify right side
    114,145.38x = 13,814,470,016.24
  5. Step 5: Solve for x
    x = 13,814,470,016.24/114,145.38
  6. Step 6: Final answer
    x = 121,025.22

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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.