Home / 145,432.17-200,629.02-85,005.36

Finding the Fourth Proportional to 145,432.17, 200,629.02 and 85,005.36

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Solution

The fourth proportional to 145,432.17, 200,629.02 and 85,005.36 is: 117,268.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,432.17 : 200,629.02 = 85,005.36 : x
  2. Step 2: Convert to fraction form
    145,432.17/200,629.02 = 85,005.36/x
  3. Step 3: Cross multiply
    145,432.17x = 200,629.02 × 85,005.36
  4. Step 4: Simplify right side
    145,432.17x = 17,054,542,071.55
  5. Step 5: Solve for x
    x = 17,054,542,071.55/145,432.17
  6. Step 6: Final answer
    x = 117,268.02

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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.