Home / 112,208.90-154,862-64,462.16

Finding the Fourth Proportional to 112,208.90, 154,862 and 64,462.16

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Solution

The fourth proportional to 112,208.90, 154,862 and 64,462.16 is: 88,965.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,208.90 : 154,862 = 64,462.16 : x
  2. Step 2: Convert to fraction form
    112,208.90/154,862 = 64,462.16/x
  3. Step 3: Cross multiply
    112,208.90x = 154,862 × 64,462.16
  4. Step 4: Simplify right side
    112,208.90x = 9,982,739,021.92
  5. Step 5: Solve for x
    x = 9,982,739,021.92/112,208.90
  6. Step 6: Final answer
    x = 88,965.66

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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.