Home / 108,132.93-162,199.32-78,737.76

Finding the Fourth Proportional to 108,132.93, 162,199.32 and 78,737.76

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Solution

The fourth proportional to 108,132.93, 162,199.32 and 78,737.76 is: 118,106.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,132.93 : 162,199.32 = 78,737.76 : x
  2. Step 2: Convert to fraction form
    108,132.93/162,199.32 = 78,737.76/x
  3. Step 3: Cross multiply
    108,132.93x = 162,199.32 × 78,737.76
  4. Step 4: Simplify right side
    108,132.93x = 12,771,210,319.33
  5. Step 5: Solve for x
    x = 12,771,210,319.33/108,132.93
  6. Step 6: Final answer
    x = 118,106.58

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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.