Home / 127,428.07-175,855.25-70,071.77

Finding the Fourth Proportional to 127,428.07, 175,855.25 and 70,071.77

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Solution

The fourth proportional to 127,428.07, 175,855.25 and 70,071.77 is: 96,701.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,428.07 : 175,855.25 = 70,071.77 : x
  2. Step 2: Convert to fraction form
    127,428.07/175,855.25 = 70,071.77/x
  3. Step 3: Cross multiply
    127,428.07x = 175,855.25 × 70,071.77
  4. Step 4: Simplify right side
    127,428.07x = 12,322,488,631.29
  5. Step 5: Solve for x
    x = 12,322,488,631.29/127,428.07
  6. Step 6: Final answer
    x = 96,701.52

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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.