Home / 104,436.40-144,122.96-56,689.74

Finding the Fourth Proportional to 104,436.40, 144,122.96 and 56,689.74

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Solution

The fourth proportional to 104,436.40, 144,122.96 and 56,689.74 is: 78,232.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,436.40 : 144,122.96 = 56,689.74 : x
  2. Step 2: Convert to fraction form
    104,436.40/144,122.96 = 56,689.74/x
  3. Step 3: Cross multiply
    104,436.40x = 144,122.96 × 56,689.74
  4. Step 4: Simplify right side
    104,436.40x = 8,170,293,130.43
  5. Step 5: Solve for x
    x = 8,170,293,130.43/104,436.40
  6. Step 6: Final answer
    x = 78,232.24

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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.