Home / 127,252.80-190,944-52,430.40

Finding the Fourth Proportional to 127,252.80, 190,944 and 52,430.40

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Solution

The fourth proportional to 127,252.80, 190,944 and 52,430.40 is: 78,672.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,252.80 : 190,944 = 52,430.40 : x
  2. Step 2: Convert to fraction form
    127,252.80/190,944 = 52,430.40/x
  3. Step 3: Cross multiply
    127,252.80x = 190,944 × 52,430.40
  4. Step 4: Simplify right side
    127,252.80x = 10,011,270,297.60
  5. Step 5: Solve for x
    x = 10,011,270,297.60/127,252.80
  6. Step 6: Final answer
    x = 78,672.30

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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.