Home / 145,621.18-218,460.93-45,806.50

Finding the Fourth Proportional to 145,621.18, 218,460.93 and 45,806.50

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Solution

The fourth proportional to 145,621.18, 218,460.93 and 45,806.50 is: 68,718.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,621.18 : 218,460.93 = 45,806.50 : x
  2. Step 2: Convert to fraction form
    145,621.18/218,460.93 = 45,806.50/x
  3. Step 3: Cross multiply
    145,621.18x = 218,460.93 × 45,806.50
  4. Step 4: Simplify right side
    145,621.18x = 10,006,930,590.05
  5. Step 5: Solve for x
    x = 10,006,930,590.05/145,621.18
  6. Step 6: Final answer
    x = 68,718.92

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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.