Home / 136,875.80-205,333.14-42,113.84

Finding the Fourth Proportional to 136,875.80, 205,333.14 and 42,113.84

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Solution

The fourth proportional to 136,875.80, 205,333.14 and 42,113.84 is: 63,176.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,875.80 : 205,333.14 = 42,113.84 : x
  2. Step 2: Convert to fraction form
    136,875.80/205,333.14 = 42,113.84/x
  3. Step 3: Cross multiply
    136,875.80x = 205,333.14 × 42,113.84
  4. Step 4: Simplify right side
    136,875.80x = 8,647,367,004.66
  5. Step 5: Solve for x
    x = 8,647,367,004.66/136,875.80
  6. Step 6: Final answer
    x = 63,176.74

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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.