Home / 120,215.80-180,323.70-58,007.80

Finding the Fourth Proportional to 120,215.80, 180,323.70 and 58,007.80

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Solution

The fourth proportional to 120,215.80, 180,323.70 and 58,007.80 is: 87,011.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,215.80 : 180,323.70 = 58,007.80 : x
  2. Step 2: Convert to fraction form
    120,215.80/180,323.70 = 58,007.80/x
  3. Step 3: Cross multiply
    120,215.80x = 180,323.70 × 58,007.80
  4. Step 4: Simplify right side
    120,215.80x = 10,460,181,124.86
  5. Step 5: Solve for x
    x = 10,460,181,124.86/120,215.80
  6. Step 6: Final answer
    x = 87,011.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.