Home / 138,130.94-207,200.28-38,298.51

Finding the Fourth Proportional to 138,130.94, 207,200.28 and 38,298.51

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Solution

The fourth proportional to 138,130.94, 207,200.28 and 38,298.51 is: 57,448.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,130.94 : 207,200.28 = 38,298.51 : x
  2. Step 2: Convert to fraction form
    138,130.94/207,200.28 = 38,298.51/x
  3. Step 3: Cross multiply
    138,130.94x = 207,200.28 × 38,298.51
  4. Step 4: Simplify right side
    138,130.94x = 7,935,461,995.58
  5. Step 5: Solve for x
    x = 7,935,461,995.58/138,130.94
  6. Step 6: Final answer
    x = 57,448.84

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.