Home / 112,776.86-155,622.84-65,027.36

Finding the Fourth Proportional to 112,776.86, 155,622.84 and 65,027.36

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Solution

The fourth proportional to 112,776.86, 155,622.84 and 65,027.36 is: 89,732.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,776.86 : 155,622.84 = 65,027.36 : x
  2. Step 2: Convert to fraction form
    112,776.86/155,622.84 = 65,027.36/x
  3. Step 3: Cross multiply
    112,776.86x = 155,622.84 × 65,027.36
  4. Step 4: Simplify right side
    112,776.86x = 10,119,742,440.90
  5. Step 5: Solve for x
    x = 10,119,742,440.90/112,776.86
  6. Step 6: Final answer
    x = 89,732.44

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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.