Home / 117,572.25-162,296.21-81,783.03

Finding the Fourth Proportional to 117,572.25, 162,296.21 and 81,783.03

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Solution

The fourth proportional to 117,572.25, 162,296.21 and 81,783.03 is: 112,892.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,572.25 : 162,296.21 = 81,783.03 : x
  2. Step 2: Convert to fraction form
    117,572.25/162,296.21 = 81,783.03/x
  3. Step 3: Cross multiply
    117,572.25x = 162,296.21 × 81,783.03
  4. Step 4: Simplify right side
    117,572.25x = 13,273,075,402.40
  5. Step 5: Solve for x
    x = 13,273,075,402.40/117,572.25
  6. Step 6: Final answer
    x = 112,892.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.