Home / 105,290.85-145,301.39-57,544.19

Finding the Fourth Proportional to 105,290.85, 145,301.39 and 57,544.19

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Solution

The fourth proportional to 105,290.85, 145,301.39 and 57,544.19 is: 79,410.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,290.85 : 145,301.39 = 57,544.19 : x
  2. Step 2: Convert to fraction form
    105,290.85/145,301.39 = 57,544.19/x
  3. Step 3: Cross multiply
    105,290.85x = 145,301.39 × 57,544.19
  4. Step 4: Simplify right side
    105,290.85x = 8,361,249,779.20
  5. Step 5: Solve for x
    x = 8,361,249,779.20/105,290.85
  6. Step 6: Final answer
    x = 79,410.98

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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.