Home / 117,459.20-176,131.35-81,937.50

Finding the Fourth Proportional to 117,459.20, 176,131.35 and 81,937.50

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Solution

The fourth proportional to 117,459.20, 176,131.35 and 81,937.50 is: 122,866.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,459.20 : 176,131.35 = 81,937.50 : x
  2. Step 2: Convert to fraction form
    117,459.20/176,131.35 = 81,937.50/x
  3. Step 3: Cross multiply
    117,459.20x = 176,131.35 × 81,937.50
  4. Step 4: Simplify right side
    117,459.20x = 14,431,762,490.63
  5. Step 5: Solve for x
    x = 14,431,762,490.63/117,459.20
  6. Step 6: Final answer
    x = 122,866.18

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1.5x scale

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.