Home / 105,129.62-145,078.26-59,807.50

Finding the Fourth Proportional to 105,129.62, 145,078.26 and 59,807.50

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Solution

The fourth proportional to 105,129.62, 145,078.26 and 59,807.50 is: 82,534.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,129.62 : 145,078.26 = 59,807.50 : x
  2. Step 2: Convert to fraction form
    105,129.62/145,078.26 = 59,807.50/x
  3. Step 3: Cross multiply
    105,129.62x = 145,078.26 × 59,807.50
  4. Step 4: Simplify right side
    105,129.62x = 8,676,768,034.95
  5. Step 5: Solve for x
    x = 8,676,768,034.95/105,129.62
  6. Step 6: Final answer
    x = 82,534.00

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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.