Home / 112,644.54-155,443.29-64,239.36

Finding the Fourth Proportional to 112,644.54, 155,443.29 and 64,239.36

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Solution

The fourth proportional to 112,644.54, 155,443.29 and 64,239.36 is: 88,646.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,644.54 : 155,443.29 = 64,239.36 : x
  2. Step 2: Convert to fraction form
    112,644.54/155,443.29 = 64,239.36/x
  3. Step 3: Cross multiply
    112,644.54x = 155,443.29 × 64,239.36
  4. Step 4: Simplify right side
    112,644.54x = 9,985,577,465.89
  5. Step 5: Solve for x
    x = 9,985,577,465.89/112,644.54
  6. Step 6: Final answer
    x = 88,646.80

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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.