Home / 103,982.32-143,485.14-58,656.16

Finding the Fourth Proportional to 103,982.32, 143,485.14 and 58,656.16

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Solution

The fourth proportional to 103,982.32, 143,485.14 and 58,656.16 is: 80,939.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,982.32 : 143,485.14 = 58,656.16 : x
  2. Step 2: Convert to fraction form
    103,982.32/143,485.14 = 58,656.16/x
  3. Step 3: Cross multiply
    103,982.32x = 143,485.14 × 58,656.16
  4. Step 4: Simplify right side
    103,982.32x = 8,416,287,329.46
  5. Step 5: Solve for x
    x = 8,416,287,329.46/103,982.32
  6. Step 6: Final answer
    x = 80,939.60

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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.