Home / 145,937.80-218,880.78-40,730.68

Finding the Fourth Proportional to 145,937.80, 218,880.78 and 40,730.68

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Solution

The fourth proportional to 145,937.80, 218,880.78 and 40,730.68 is: 61,088.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,937.80 : 218,880.78 = 40,730.68 : x
  2. Step 2: Convert to fraction form
    145,937.80/218,880.78 = 40,730.68/x
  3. Step 3: Cross multiply
    145,937.80x = 218,880.78 × 40,730.68
  4. Step 4: Simplify right side
    145,937.80x = 8,915,163,008.33
  5. Step 5: Solve for x
    x = 8,915,163,008.33/145,937.80
  6. Step 6: Final answer
    x = 61,088.79

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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.