Home / 127,802.60-191,531.10-112,941.80

Finding the Fourth Proportional to 127,802.60, 191,531.10 and 112,941.80

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Solution

The fourth proportional to 127,802.60, 191,531.10 and 112,941.80 is: 169,259.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,802.60 : 191,531.10 = 112,941.80 : x
  2. Step 2: Convert to fraction form
    127,802.60/191,531.10 = 112,941.80/x
  3. Step 3: Cross multiply
    127,802.60x = 191,531.10 × 112,941.80
  4. Step 4: Simplify right side
    127,802.60x = 21,631,867,189.98
  5. Step 5: Solve for x
    x = 21,631,867,189.98/127,802.60
  6. Step 6: Final answer
    x = 169,259.99

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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.