Home / 210,108.28-289,987.02-125,230.72

Finding the Fourth Proportional to 210,108.28, 289,987.02 and 125,230.72

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Solution

The fourth proportional to 210,108.28, 289,987.02 and 125,230.72 is: 172,840.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,108.28 : 289,987.02 = 125,230.72 : x
  2. Step 2: Convert to fraction form
    210,108.28/289,987.02 = 125,230.72/x
  3. Step 3: Cross multiply
    210,108.28x = 289,987.02 × 125,230.72
  4. Step 4: Simplify right side
    210,108.28x = 36,315,283,305.25
  5. Step 5: Solve for x
    x = 36,315,283,305.25/210,108.28
  6. Step 6: Final answer
    x = 172,840.80

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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.