Home / 158,723.96-219,038.45-87,105.17

Finding the Fourth Proportional to 158,723.96, 219,038.45 and 87,105.17

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Solution

The fourth proportional to 158,723.96, 219,038.45 and 87,105.17 is: 120,204.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,723.96 : 219,038.45 = 87,105.17 : x
  2. Step 2: Convert to fraction form
    158,723.96/219,038.45 = 87,105.17/x
  3. Step 3: Cross multiply
    158,723.96x = 219,038.45 × 87,105.17
  4. Step 4: Simplify right side
    158,723.96x = 19,079,381,535.86
  5. Step 5: Solve for x
    x = 19,079,381,535.86/158,723.96
  6. Step 6: Final answer
    x = 120,204.80

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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.