Home / 112,095.36-154,754.96-74,421.12

Finding the Fourth Proportional to 112,095.36, 154,754.96 and 74,421.12

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Solution

The fourth proportional to 112,095.36, 154,754.96 and 74,421.12 is: 102,743.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,095.36 : 154,754.96 = 74,421.12 : x
  2. Step 2: Convert to fraction form
    112,095.36/154,754.96 = 74,421.12/x
  3. Step 3: Cross multiply
    112,095.36x = 154,754.96 × 74,421.12
  4. Step 4: Simplify right side
    112,095.36x = 11,517,037,448.76
  5. Step 5: Solve for x
    x = 11,517,037,448.76/112,095.36
  6. Step 6: Final answer
    x = 102,743.21

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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.