Home / 100,008.37-137,901.58-64,184.77

Finding the Fourth Proportional to 100,008.37, 137,901.58 and 64,184.77

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Solution

The fourth proportional to 100,008.37, 137,901.58 and 64,184.77 is: 88,504.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,008.37 : 137,901.58 = 64,184.77 : x
  2. Step 2: Convert to fraction form
    100,008.37/137,901.58 = 64,184.77/x
  3. Step 3: Cross multiply
    100,008.37x = 137,901.58 × 64,184.77
  4. Step 4: Simplify right side
    100,008.37x = 8,851,181,194.94
  5. Step 5: Solve for x
    x = 8,851,181,194.94/100,008.37
  6. Step 6: Final answer
    x = 88,504.40

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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.