Home / 145,346.34-218,019.60-40,165.40

Finding the Fourth Proportional to 145,346.34, 218,019.60 and 40,165.40

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Solution

The fourth proportional to 145,346.34, 218,019.60 and 40,165.40 is: 60,248.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,346.34 : 218,019.60 = 40,165.40 : x
  2. Step 2: Convert to fraction form
    145,346.34/218,019.60 = 40,165.40/x
  3. Step 3: Cross multiply
    145,346.34x = 218,019.60 × 40,165.40
  4. Step 4: Simplify right side
    145,346.34x = 8,756,844,441.84
  5. Step 5: Solve for x
    x = 8,756,844,441.84/145,346.34
  6. Step 6: Final answer
    x = 60,248.12

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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.