Home / 127,009.64-190,475.52-87,818.60

Finding the Fourth Proportional to 127,009.64, 190,475.52 and 87,818.60

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Solution

The fourth proportional to 127,009.64, 190,475.52 and 87,818.60 is: 131,700.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,009.64 : 190,475.52 = 87,818.60 : x
  2. Step 2: Convert to fraction form
    127,009.64/190,475.52 = 87,818.60/x
  3. Step 3: Cross multiply
    127,009.64x = 190,475.52 × 87,818.60
  4. Step 4: Simplify right side
    127,009.64x = 16,727,293,500.67
  5. Step 5: Solve for x
    x = 16,727,293,500.67/127,009.64
  6. Step 6: Final answer
    x = 131,700.98

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.