Home / 103,659.03-143,056.70-58,341.35

Finding the Fourth Proportional to 103,659.03, 143,056.70 and 58,341.35

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Solution

The fourth proportional to 103,659.03, 143,056.70 and 58,341.35 is: 80,515.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,659.03 : 143,056.70 = 58,341.35 : x
  2. Step 2: Convert to fraction form
    103,659.03/143,056.70 = 58,341.35/x
  3. Step 3: Cross multiply
    103,659.03x = 143,056.70 × 58,341.35
  4. Step 4: Simplify right side
    103,659.03x = 8,346,121,004.55
  5. Step 5: Solve for x
    x = 8,346,121,004.55/103,659.03
  6. Step 6: Final answer
    x = 80,515.14

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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.