Home / 127,130.37-175,472.15-86,860.41

Finding the Fourth Proportional to 127,130.37, 175,472.15 and 86,860.41

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Solution

The fourth proportional to 127,130.37, 175,472.15 and 86,860.41 is: 119,889.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,130.37 : 175,472.15 = 86,860.41 : x
  2. Step 2: Convert to fraction form
    127,130.37/175,472.15 = 86,860.41/x
  3. Step 3: Cross multiply
    127,130.37x = 175,472.15 × 86,860.41
  4. Step 4: Simplify right side
    127,130.37x = 15,241,582,892.58
  5. Step 5: Solve for x
    x = 15,241,582,892.58/127,130.37
  6. Step 6: Final answer
    x = 119,889.39

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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.