Home / 117,947.61-162,923.45-87,382.76

Finding the Fourth Proportional to 117,947.61, 162,923.45 and 87,382.76

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Solution

The fourth proportional to 117,947.61, 162,923.45 and 87,382.76 is: 120,703.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,947.61 : 162,923.45 = 87,382.76 : x
  2. Step 2: Convert to fraction form
    117,947.61/162,923.45 = 87,382.76/x
  3. Step 3: Cross multiply
    117,947.61x = 162,923.45 × 87,382.76
  4. Step 4: Simplify right side
    117,947.61x = 14,236,699,478.19
  5. Step 5: Solve for x
    x = 14,236,699,478.19/117,947.61
  6. Step 6: Final answer
    x = 120,703.59

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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.