Home / 147,549.41-203,612.29-87,139.52

Finding the Fourth Proportional to 147,549.41, 203,612.29 and 87,139.52

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Solution

The fourth proportional to 147,549.41, 203,612.29 and 87,139.52 is: 120,249.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,549.41 : 203,612.29 = 87,139.52 : x
  2. Step 2: Convert to fraction form
    147,549.41/203,612.29 = 87,139.52/x
  3. Step 3: Cross multiply
    147,549.41x = 203,612.29 × 87,139.52
  4. Step 4: Simplify right side
    147,549.41x = 17,742,675,762.94
  5. Step 5: Solve for x
    x = 17,742,675,762.94/147,549.41
  6. Step 6: Final answer
    x = 120,249.05

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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.