Home / 102,513.47-141,468.80-57,190.32

Finding the Fourth Proportional to 102,513.47, 141,468.80 and 57,190.32

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Solution

The fourth proportional to 102,513.47, 141,468.80 and 57,190.32 is: 78,922.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,513.47 : 141,468.80 = 57,190.32 : x
  2. Step 2: Convert to fraction form
    102,513.47/141,468.80 = 57,190.32/x
  3. Step 3: Cross multiply
    102,513.47x = 141,468.80 × 57,190.32
  4. Step 4: Simplify right side
    102,513.47x = 8,090,645,656.06
  5. Step 5: Solve for x
    x = 8,090,645,656.06/102,513.47
  6. Step 6: Final answer
    x = 78,922.76

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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.