Home / 145,112.04-200,243.60-81,437.52

Finding the Fourth Proportional to 145,112.04, 200,243.60 and 81,437.52

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Solution

The fourth proportional to 145,112.04, 200,243.60 and 81,437.52 is: 112,377.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,112.04 : 200,243.60 = 81,437.52 : x
  2. Step 2: Convert to fraction form
    145,112.04/200,243.60 = 81,437.52/x
  3. Step 3: Cross multiply
    145,112.04x = 200,243.60 × 81,437.52
  4. Step 4: Simplify right side
    145,112.04x = 16,307,342,179.87
  5. Step 5: Solve for x
    x = 16,307,342,179.87/145,112.04
  6. Step 6: Final answer
    x = 112,377.60

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1.5x scale

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.