Home / 145,572.12-218,360.88-45,730.44

Finding the Fourth Proportional to 145,572.12, 218,360.88 and 45,730.44

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Solution

The fourth proportional to 145,572.12, 218,360.88 and 45,730.44 is: 68,596.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,572.12 : 218,360.88 = 45,730.44 : x
  2. Step 2: Convert to fraction form
    145,572.12/218,360.88 = 45,730.44/x
  3. Step 3: Cross multiply
    145,572.12x = 218,360.88 × 45,730.44
  4. Step 4: Simplify right side
    145,572.12x = 9,985,739,121.19
  5. Step 5: Solve for x
    x = 9,985,739,121.19/145,572.12
  6. Step 6: Final answer
    x = 68,596.51

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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.