Home / 105,444.29-145,513.12-57,697.64

Finding the Fourth Proportional to 105,444.29, 145,513.12 and 57,697.64

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Solution

The fourth proportional to 105,444.29, 145,513.12 and 57,697.64 is: 79,622.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,444.29 : 145,513.12 = 57,697.64 : x
  2. Step 2: Convert to fraction form
    105,444.29/145,513.12 = 57,697.64/x
  3. Step 3: Cross multiply
    105,444.29x = 145,513.12 × 57,697.64
  4. Step 4: Simplify right side
    105,444.29x = 8,395,763,324.55
  5. Step 5: Solve for x
    x = 8,395,763,324.55/105,444.29
  6. Step 6: Final answer
    x = 79,622.74

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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.