Home / 105,283.80-145,290.87-57,536.10

Finding the Fourth Proportional to 105,283.80, 145,290.87 and 57,536.10

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Solution

The fourth proportional to 105,283.80, 145,290.87 and 57,536.10 is: 79,399.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,283.80 : 145,290.87 = 57,536.10 : x
  2. Step 2: Convert to fraction form
    105,283.80/145,290.87 = 57,536.10/x
  3. Step 3: Cross multiply
    105,283.80x = 145,290.87 × 57,536.10
  4. Step 4: Simplify right side
    105,283.80x = 8,359,470,025.41
  5. Step 5: Solve for x
    x = 8,359,470,025.41/105,283.80
  6. Step 6: Final answer
    x = 79,399.40

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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.