Home / 105,301.46-145,299.20-59,980.32

Finding the Fourth Proportional to 105,301.46, 145,299.20 and 59,980.32

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Solution

The fourth proportional to 105,301.46, 145,299.20 and 59,980.32 is: 82,763.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,301.46 : 145,299.20 = 59,980.32 : x
  2. Step 2: Convert to fraction form
    105,301.46/145,299.20 = 59,980.32/x
  3. Step 3: Cross multiply
    105,301.46x = 145,299.20 × 59,980.32
  4. Step 4: Simplify right side
    105,301.46x = 8,715,092,511.74
  5. Step 5: Solve for x
    x = 8,715,092,511.74/105,301.46
  6. Step 6: Final answer
    x = 82,763.26

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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.