Home / 127,145.16-190,779.71-52,287.80

Finding the Fourth Proportional to 127,145.16, 190,779.71 and 52,287.80

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Solution

The fourth proportional to 127,145.16, 190,779.71 and 52,287.80 is: 78,457.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,145.16 : 190,779.71 = 52,287.80 : x
  2. Step 2: Convert to fraction form
    127,145.16/190,779.71 = 52,287.80/x
  3. Step 3: Cross multiply
    127,145.16x = 190,779.71 × 52,287.80
  4. Step 4: Simplify right side
    127,145.16x = 9,975,451,212.78
  5. Step 5: Solve for x
    x = 9,975,451,212.78/127,145.16
  6. Step 6: Final answer
    x = 78,457.18

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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.