Home / 127,615.08-176,106.78-71,027.40

Finding the Fourth Proportional to 127,615.08, 176,106.78 and 71,027.40

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Solution

The fourth proportional to 127,615.08, 176,106.78 and 71,027.40 is: 98,016.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,615.08 : 176,106.78 = 71,027.40 : x
  2. Step 2: Convert to fraction form
    127,615.08/176,106.78 = 71,027.40/x
  3. Step 3: Cross multiply
    127,615.08x = 176,106.78 × 71,027.40
  4. Step 4: Simplify right side
    127,615.08x = 12,508,406,705.77
  5. Step 5: Solve for x
    x = 12,508,406,705.77/127,615.08
  6. Step 6: Final answer
    x = 98,016.68

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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.