Home / 117,828.48-176,577.60-91,411.20

Finding the Fourth Proportional to 117,828.48, 176,577.60 and 91,411.20

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Solution

The fourth proportional to 117,828.48, 176,577.60 and 91,411.20 is: 136,988.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,828.48 : 176,577.60 = 91,411.20 : x
  2. Step 2: Convert to fraction form
    117,828.48/176,577.60 = 91,411.20/x
  3. Step 3: Cross multiply
    117,828.48x = 176,577.60 × 91,411.20
  4. Step 4: Simplify right side
    117,828.48x = 16,141,170,309.12
  5. Step 5: Solve for x
    x = 16,141,170,309.12/117,828.48
  6. Step 6: Final answer
    x = 136,988.70

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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.