Home / 127,209.29-190,860.71-52,309.40

Finding the Fourth Proportional to 127,209.29, 190,860.71 and 52,309.40

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Solution

The fourth proportional to 127,209.29, 190,860.71 and 52,309.40 is: 78,483.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,209.29 : 190,860.71 = 52,309.40 : x
  2. Step 2: Convert to fraction form
    127,209.29/190,860.71 = 52,309.40/x
  3. Step 3: Cross multiply
    127,209.29x = 190,860.71 × 52,309.40
  4. Step 4: Simplify right side
    127,209.29x = 9,983,808,007.82
  5. Step 5: Solve for x
    x = 9,983,808,007.82/127,209.29
  6. Step 6: Final answer
    x = 78,483.33

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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.