Home / 105,187.80-145,172.88-59,856.96

Finding the Fourth Proportional to 105,187.80, 145,172.88 and 59,856.96

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Solution

The fourth proportional to 105,187.80, 145,172.88 and 59,856.96 is: 82,610.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,187.80 : 145,172.88 = 59,856.96 : x
  2. Step 2: Convert to fraction form
    105,187.80/145,172.88 = 59,856.96/x
  3. Step 3: Cross multiply
    105,187.80x = 145,172.88 × 59,856.96
  4. Step 4: Simplify right side
    105,187.80x = 8,689,607,271.24
  5. Step 5: Solve for x
    x = 8,689,607,271.24/105,187.80
  6. Step 6: Final answer
    x = 82,610.41

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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.