Home / 112,604.16-154,992.64-98,421.76

Finding the Fourth Proportional to 112,604.16, 154,992.64 and 98,421.76

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Solution

The fourth proportional to 112,604.16, 154,992.64 and 98,421.76 is: 135,471.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,604.16 : 154,992.64 = 98,421.76 : x
  2. Step 2: Convert to fraction form
    112,604.16/154,992.64 = 98,421.76/x
  3. Step 3: Cross multiply
    112,604.16x = 154,992.64 × 98,421.76
  4. Step 4: Simplify right side
    112,604.16x = 15,254,648,415.85
  5. Step 5: Solve for x
    x = 15,254,648,415.85/112,604.16
  6. Step 6: Final answer
    x = 135,471.45

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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.