Home / 145,261.61-217,898.58-45,423.68

Finding the Fourth Proportional to 145,261.61, 217,898.58 and 45,423.68

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Solution

The fourth proportional to 145,261.61, 217,898.58 and 45,423.68 is: 68,137.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,261.61 : 217,898.58 = 45,423.68 : x
  2. Step 2: Convert to fraction form
    145,261.61/217,898.58 = 45,423.68/x
  3. Step 3: Cross multiply
    145,261.61x = 217,898.58 × 45,423.68
  4. Step 4: Simplify right side
    145,261.61x = 9,897,755,370.37
  5. Step 5: Solve for x
    x = 9,897,755,370.37/145,261.61
  6. Step 6: Final answer
    x = 68,137.45

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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.