Home / 145,146.66-200,302.24-81,484.58

Finding the Fourth Proportional to 145,146.66, 200,302.24 and 81,484.58

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Solution

The fourth proportional to 145,146.66, 200,302.24 and 81,484.58 is: 112,448.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,146.66 : 200,302.24 = 81,484.58 : x
  2. Step 2: Convert to fraction form
    145,146.66/200,302.24 = 81,484.58/x
  3. Step 3: Cross multiply
    145,146.66x = 200,302.24 × 81,484.58
  4. Step 4: Simplify right side
    145,146.66x = 16,321,543,899.46
  5. Step 5: Solve for x
    x = 16,321,543,899.46/145,146.66
  6. Step 6: Final answer
    x = 112,448.64

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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.