Home / 203,057.37-280,215.63-112,411.35

Finding the Fourth Proportional to 203,057.37, 280,215.63 and 112,411.35

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Solution

The fourth proportional to 203,057.37, 280,215.63 and 112,411.35 is: 155,125.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,057.37 : 280,215.63 = 112,411.35 : x
  2. Step 2: Convert to fraction form
    203,057.37/280,215.63 = 112,411.35/x
  3. Step 3: Cross multiply
    203,057.37x = 280,215.63 × 112,411.35
  4. Step 4: Simplify right side
    203,057.37x = 31,499,417,259.40
  5. Step 5: Solve for x
    x = 31,499,417,259.40/203,057.37
  6. Step 6: Final answer
    x = 155,125.70

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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.