Home / 127,143.90-175,466.79-73,431.18

Finding the Fourth Proportional to 127,143.90, 175,466.79 and 73,431.18

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Solution

The fourth proportional to 127,143.90, 175,466.79 and 73,431.18 is: 101,339.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,143.90 : 175,466.79 = 73,431.18 : x
  2. Step 2: Convert to fraction form
    127,143.90/175,466.79 = 73,431.18/x
  3. Step 3: Cross multiply
    127,143.90x = 175,466.79 × 73,431.18
  4. Step 4: Simplify right side
    127,143.90x = 12,884,733,440.51
  5. Step 5: Solve for x
    x = 12,884,733,440.51/127,143.90
  6. Step 6: Final answer
    x = 101,339.77

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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.