Home / 103,746.08-143,157.84-58,420.64

Finding the Fourth Proportional to 103,746.08, 143,157.84 and 58,420.64

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Solution

The fourth proportional to 103,746.08, 143,157.84 and 58,420.64 is: 80,613.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,746.08 : 143,157.84 = 58,420.64 : x
  2. Step 2: Convert to fraction form
    103,746.08/143,157.84 = 58,420.64/x
  3. Step 3: Cross multiply
    103,746.08x = 143,157.84 × 58,420.64
  4. Step 4: Simplify right side
    103,746.08x = 8,363,372,633.82
  5. Step 5: Solve for x
    x = 8,363,372,633.82/103,746.08
  6. Step 6: Final answer
    x = 80,613.87

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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.