Home / 145,094.58-200,250.06-81,435.86

Finding the Fourth Proportional to 145,094.58, 200,250.06 and 81,435.86

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Solution

The fourth proportional to 145,094.58, 200,250.06 and 81,435.86 is: 112,392.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,094.58 : 200,250.06 = 81,435.86 : x
  2. Step 2: Convert to fraction form
    145,094.58/200,250.06 = 81,435.86/x
  3. Step 3: Cross multiply
    145,094.58x = 200,250.06 × 81,435.86
  4. Step 4: Simplify right side
    145,094.58x = 16,307,535,851.15
  5. Step 5: Solve for x
    x = 16,307,535,851.15/145,094.58
  6. Step 6: Final answer
    x = 112,392.45

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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.