Home / 145,894.10-218,809.56-39,275.42

Finding the Fourth Proportional to 145,894.10, 218,809.56 and 39,275.42

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Solution

The fourth proportional to 145,894.10, 218,809.56 and 39,275.42 is: 58,904.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,894.10 : 218,809.56 = 39,275.42 : x
  2. Step 2: Convert to fraction form
    145,894.10/218,809.56 = 39,275.42/x
  3. Step 3: Cross multiply
    145,894.10x = 218,809.56 × 39,275.42
  4. Step 4: Simplify right side
    145,894.10x = 8,593,837,369.02
  5. Step 5: Solve for x
    x = 8,593,837,369.02/145,894.10
  6. Step 6: Final answer
    x = 58,904.63

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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.