Home / 105,317.26-145,337.09-57,570.72

Finding the Fourth Proportional to 105,317.26, 145,337.09 and 57,570.72

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Solution

The fourth proportional to 105,317.26, 145,337.09 and 57,570.72 is: 79,447.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,317.26 : 145,337.09 = 57,570.72 : x
  2. Step 2: Convert to fraction form
    105,317.26/145,337.09 = 57,570.72/x
  3. Step 3: Cross multiply
    105,317.26x = 145,337.09 × 57,570.72
  4. Step 4: Simplify right side
    105,317.26x = 8,367,161,307.42
  5. Step 5: Solve for x
    x = 8,367,161,307.42/105,317.26
  6. Step 6: Final answer
    x = 79,447.20

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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.