Home / 112,869.30-169,305.39-77,799.54

Finding the Fourth Proportional to 112,869.30, 169,305.39 and 77,799.54

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Solution

The fourth proportional to 112,869.30, 169,305.39 and 77,799.54 is: 116,700.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,869.30 : 169,305.39 = 77,799.54 : x
  2. Step 2: Convert to fraction form
    112,869.30/169,305.39 = 77,799.54/x
  3. Step 3: Cross multiply
    112,869.30x = 169,305.39 × 77,799.54
  4. Step 4: Simplify right side
    112,869.30x = 13,171,881,461.52
  5. Step 5: Solve for x
    x = 13,171,881,461.52/112,869.30
  6. Step 6: Final answer
    x = 116,700.30

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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.