Home / 118,012.08-162,916.86-79,972.59

Finding the Fourth Proportional to 118,012.08, 162,916.86 and 79,972.59

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Solution

The fourth proportional to 118,012.08, 162,916.86 and 79,972.59 is: 110,402.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,012.08 : 162,916.86 = 79,972.59 : x
  2. Step 2: Convert to fraction form
    118,012.08/162,916.86 = 79,972.59/x
  3. Step 3: Cross multiply
    118,012.08x = 162,916.86 × 79,972.59
  4. Step 4: Simplify right side
    118,012.08x = 13,028,883,248.87
  5. Step 5: Solve for x
    x = 13,028,883,248.87/118,012.08
  6. Step 6: Final answer
    x = 110,402.96

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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.