Home / 127,056.12-190,592.10-42,809.28

Finding the Fourth Proportional to 127,056.12, 190,592.10 and 42,809.28

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Solution

The fourth proportional to 127,056.12, 190,592.10 and 42,809.28 is: 64,216.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,056.12 : 190,592.10 = 42,809.28 : x
  2. Step 2: Convert to fraction form
    127,056.12/190,592.10 = 42,809.28/x
  3. Step 3: Cross multiply
    127,056.12x = 190,592.10 × 42,809.28
  4. Step 4: Simplify right side
    127,056.12x = 8,159,110,574.69
  5. Step 5: Solve for x
    x = 8,159,110,574.69/127,056.12
  6. Step 6: Final answer
    x = 64,216.59

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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.