Home / 117,883.12-162,713.06-77,053.18

Finding the Fourth Proportional to 117,883.12, 162,713.06 and 77,053.18

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Solution

The fourth proportional to 117,883.12, 162,713.06 and 77,053.18 is: 106,355.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,883.12 : 162,713.06 = 77,053.18 : x
  2. Step 2: Convert to fraction form
    117,883.12/162,713.06 = 77,053.18/x
  3. Step 3: Cross multiply
    117,883.12x = 162,713.06 × 77,053.18
  4. Step 4: Simplify right side
    117,883.12x = 12,537,558,700.53
  5. Step 5: Solve for x
    x = 12,537,558,700.53/117,883.12
  6. Step 6: Final answer
    x = 106,355.84

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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.