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Finding the Fourth Proportional to 145,730.26, 218,603.15 and 45,898.25

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Solution

The fourth proportional to 145,730.26, 218,603.15 and 45,898.25 is: 68,849.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,730.26 : 218,603.15 = 45,898.25 : x
  2. Step 2: Convert to fraction form
    145,730.26/218,603.15 = 45,898.25/x
  3. Step 3: Cross multiply
    145,730.26x = 218,603.15 × 45,898.25
  4. Step 4: Simplify right side
    145,730.26x = 10,033,501,800.00
  5. Step 5: Solve for x
    x = 10,033,501,800.00/145,730.26
  6. Step 6: Final answer
    x = 68,849.82

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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.