Home / 112,071.40-154,656.48-61,084.60

Finding the Fourth Proportional to 112,071.40, 154,656.48 and 61,084.60

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Solution

The fourth proportional to 112,071.40, 154,656.48 and 61,084.60 is: 84,295.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,071.40 : 154,656.48 = 61,084.60 : x
  2. Step 2: Convert to fraction form
    112,071.40/154,656.48 = 61,084.60/x
  3. Step 3: Cross multiply
    112,071.40x = 154,656.48 × 61,084.60
  4. Step 4: Simplify right side
    112,071.40x = 9,447,129,218.21
  5. Step 5: Solve for x
    x = 9,447,129,218.21/112,071.40
  6. Step 6: Final answer
    x = 84,295.63

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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.