Home / 104,436.48-144,123.84-56,689.92

Finding the Fourth Proportional to 104,436.48, 144,123.84 and 56,689.92

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Solution

The fourth proportional to 104,436.48, 144,123.84 and 56,689.92 is: 78,232.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,436.48 : 144,123.84 = 56,689.92 : x
  2. Step 2: Convert to fraction form
    104,436.48/144,123.84 = 56,689.92/x
  3. Step 3: Cross multiply
    104,436.48x = 144,123.84 × 56,689.92
  4. Step 4: Simplify right side
    104,436.48x = 8,170,368,959.69
  5. Step 5: Solve for x
    x = 8,170,368,959.69/104,436.48
  6. Step 6: Final answer
    x = 78,232.90

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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.