Home / 104,428.18-144,111.05-56,681.54

Finding the Fourth Proportional to 104,428.18, 144,111.05 and 56,681.54

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Solution

The fourth proportional to 104,428.18, 144,111.05 and 56,681.54 is: 78,220.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,428.18 : 144,111.05 = 56,681.54 : x
  2. Step 2: Convert to fraction form
    104,428.18/144,111.05 = 56,681.54/x
  3. Step 3: Cross multiply
    104,428.18x = 144,111.05 × 56,681.54
  4. Step 4: Simplify right side
    104,428.18x = 8,168,436,245.02
  5. Step 5: Solve for x
    x = 8,168,436,245.02/104,428.18
  6. Step 6: Final answer
    x = 78,220.61

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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.