Home / 104,509.92-144,225-56,764.08

Finding the Fourth Proportional to 104,509.92, 144,225 and 56,764.08

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Solution

The fourth proportional to 104,509.92, 144,225 and 56,764.08 is: 78,335.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,509.92 : 144,225 = 56,764.08 : x
  2. Step 2: Convert to fraction form
    104,509.92/144,225 = 56,764.08/x
  3. Step 3: Cross multiply
    104,509.92x = 144,225 × 56,764.08
  4. Step 4: Simplify right side
    104,509.92x = 8,186,799,438
  5. Step 5: Solve for x
    x = 8,186,799,438/104,509.92
  6. Step 6: Final answer
    x = 78,335.14

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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.