Home / 136,931.03-205,403.95-42,226.41

Finding the Fourth Proportional to 136,931.03, 205,403.95 and 42,226.41

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Solution

The fourth proportional to 136,931.03, 205,403.95 and 42,226.41 is: 63,341.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,931.03 : 205,403.95 = 42,226.41 : x
  2. Step 2: Convert to fraction form
    136,931.03/205,403.95 = 42,226.41/x
  3. Step 3: Cross multiply
    136,931.03x = 205,403.95 × 42,226.41
  4. Step 4: Simplify right side
    136,931.03x = 8,673,472,231.37
  5. Step 5: Solve for x
    x = 8,673,472,231.37/136,931.03
  6. Step 6: Final answer
    x = 63,341.90

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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.