Home / 103,070.69-142,235.07-57,750.58

Finding the Fourth Proportional to 103,070.69, 142,235.07 and 57,750.58

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Solution

The fourth proportional to 103,070.69, 142,235.07 and 57,750.58 is: 79,694.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,070.69 : 142,235.07 = 57,750.58 : x
  2. Step 2: Convert to fraction form
    103,070.69/142,235.07 = 57,750.58/x
  3. Step 3: Cross multiply
    103,070.69x = 142,235.07 × 57,750.58
  4. Step 4: Simplify right side
    103,070.69x = 8,214,158,074.92
  5. Step 5: Solve for x
    x = 8,214,158,074.92/103,070.69
  6. Step 6: Final answer
    x = 79,694.41

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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.