Home / 210,101.28-289,977.36-125,223.72

Finding the Fourth Proportional to 210,101.28, 289,977.36 and 125,223.72

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Solution

The fourth proportional to 210,101.28, 289,977.36 and 125,223.72 is: 172,831.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,101.28 : 289,977.36 = 125,223.72 : x
  2. Step 2: Convert to fraction form
    210,101.28/289,977.36 = 125,223.72/x
  3. Step 3: Cross multiply
    210,101.28x = 289,977.36 × 125,223.72
  4. Step 4: Simplify right side
    210,101.28x = 36,312,043,734.98
  5. Step 5: Solve for x
    x = 36,312,043,734.98/210,101.28
  6. Step 6: Final answer
    x = 172,831.14

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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.