Home / 104,428.35-144,111.28-56,681.73

Finding the Fourth Proportional to 104,428.35, 144,111.28 and 56,681.73

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Solution

The fourth proportional to 104,428.35, 144,111.28 and 56,681.73 is: 78,220.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,428.35 : 144,111.28 = 56,681.73 : x
  2. Step 2: Convert to fraction form
    104,428.35/144,111.28 = 56,681.73/x
  3. Step 3: Cross multiply
    104,428.35x = 144,111.28 × 56,681.73
  4. Step 4: Simplify right side
    104,428.35x = 8,168,476,521.21
  5. Step 5: Solve for x
    x = 8,168,476,521.21/104,428.35
  6. Step 6: Final answer
    x = 78,220.87

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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.