Home / 112,820.80-169,231.20-101,545.60

Finding the Fourth Proportional to 112,820.80, 169,231.20 and 101,545.60

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Solution

The fourth proportional to 112,820.80, 169,231.20 and 101,545.60 is: 152,318.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,820.80 : 169,231.20 = 101,545.60 : x
  2. Step 2: Convert to fraction form
    112,820.80/169,231.20 = 101,545.60/x
  3. Step 3: Cross multiply
    112,820.80x = 169,231.20 × 101,545.60
  4. Step 4: Simplify right side
    112,820.80x = 17,184,683,742.72
  5. Step 5: Solve for x
    x = 17,184,683,742.72/112,820.80
  6. Step 6: Final answer
    x = 152,318.40

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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.