Home / 145,570.18-218,355.36-40,389.28

Finding the Fourth Proportional to 145,570.18, 218,355.36 and 40,389.28

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Solution

The fourth proportional to 145,570.18, 218,355.36 and 40,389.28 is: 60,583.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,570.18 : 218,355.36 = 40,389.28 : x
  2. Step 2: Convert to fraction form
    145,570.18/218,355.36 = 40,389.28/x
  3. Step 3: Cross multiply
    145,570.18x = 218,355.36 × 40,389.28
  4. Step 4: Simplify right side
    145,570.18x = 8,819,215,774.54
  5. Step 5: Solve for x
    x = 8,819,215,774.54/145,570.18
  6. Step 6: Final answer
    x = 60,583.94

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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.