Home / 127,130.37-175,428.29-75,438.55

Finding the Fourth Proportional to 127,130.37, 175,428.29 and 75,438.55

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Solution

The fourth proportional to 127,130.37, 175,428.29 and 75,438.55 is: 104,098.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,130.37 : 175,428.29 = 75,438.55 : x
  2. Step 2: Convert to fraction form
    127,130.37/175,428.29 = 75,438.55/x
  3. Step 3: Cross multiply
    127,130.37x = 175,428.29 × 75,438.55
  4. Step 4: Simplify right side
    127,130.37x = 13,234,056,234.46
  5. Step 5: Solve for x
    x = 13,234,056,234.46/127,130.37
  6. Step 6: Final answer
    x = 104,098.31

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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.