Home / 145,480.26-200,746.44-81,816.70

Finding the Fourth Proportional to 145,480.26, 200,746.44 and 81,816.70

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Solution

The fourth proportional to 145,480.26, 200,746.44 and 81,816.70 is: 112,897.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,480.26 : 200,746.44 = 81,816.70 : x
  2. Step 2: Convert to fraction form
    145,480.26/200,746.44 = 81,816.70/x
  3. Step 3: Cross multiply
    145,480.26x = 200,746.44 × 81,816.70
  4. Step 4: Simplify right side
    145,480.26x = 16,424,411,257.55
  5. Step 5: Solve for x
    x = 16,424,411,257.55/145,480.26
  6. Step 6: Final answer
    x = 112,897.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.