Home / 127,980.23-176,580.32-76,976.55

Finding the Fourth Proportional to 127,980.23, 176,580.32 and 76,976.55

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Solution

The fourth proportional to 127,980.23, 176,580.32 and 76,976.55 is: 106,208.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,980.23 : 176,580.32 = 76,976.55 : x
  2. Step 2: Convert to fraction form
    127,980.23/176,580.32 = 76,976.55/x
  3. Step 3: Cross multiply
    127,980.23x = 176,580.32 × 76,976.55
  4. Step 4: Simplify right side
    127,980.23x = 13,592,543,446.61
  5. Step 5: Solve for x
    x = 13,592,543,446.61/127,980.23
  6. Step 6: Final answer
    x = 106,208.15

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1.5x scale

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.