Home / 127,063.10-190,612.30-42,847.40

Finding the Fourth Proportional to 127,063.10, 190,612.30 and 42,847.40

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Solution

The fourth proportional to 127,063.10, 190,612.30 and 42,847.40 is: 64,277.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,063.10 : 190,612.30 = 42,847.40 : x
  2. Step 2: Convert to fraction form
    127,063.10/190,612.30 = 42,847.40/x
  3. Step 3: Cross multiply
    127,063.10x = 190,612.30 × 42,847.40
  4. Step 4: Simplify right side
    127,063.10x = 8,167,241,463.02
  5. Step 5: Solve for x
    x = 8,167,241,463.02/127,063.10
  6. Step 6: Final answer
    x = 64,277.05

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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.