Home / 103,023.09-142,165.02-57,079.69

Finding the Fourth Proportional to 103,023.09, 142,165.02 and 57,079.69

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Solution

The fourth proportional to 103,023.09, 142,165.02 and 57,079.69 is: 78,766.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,023.09 : 142,165.02 = 57,079.69 : x
  2. Step 2: Convert to fraction form
    103,023.09/142,165.02 = 57,079.69/x
  3. Step 3: Cross multiply
    103,023.09x = 142,165.02 × 57,079.69
  4. Step 4: Simplify right side
    103,023.09x = 8,114,735,129.08
  5. Step 5: Solve for x
    x = 8,114,735,129.08/103,023.09
  6. Step 6: Final answer
    x = 78,766.18

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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.