Home / 103,958.32-143,462.40-56,211.64

Finding the Fourth Proportional to 103,958.32, 143,462.40 and 56,211.64

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Solution

The fourth proportional to 103,958.32, 143,462.40 and 56,211.64 is: 77,572.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,958.32 : 143,462.40 = 56,211.64 : x
  2. Step 2: Convert to fraction form
    103,958.32/143,462.40 = 56,211.64/x
  3. Step 3: Cross multiply
    103,958.32x = 143,462.40 × 56,211.64
  4. Step 4: Simplify right side
    103,958.32x = 8,064,256,782.34
  5. Step 5: Solve for x
    x = 8,064,256,782.34/103,958.32
  6. Step 6: Final answer
    x = 77,572.02

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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.