Home / 142,410.69-213,484.77-72,273.60

Finding the Fourth Proportional to 142,410.69, 213,484.77 and 72,273.60

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Solution

The fourth proportional to 142,410.69, 213,484.77 and 72,273.60 is: 108,343.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,410.69 : 213,484.77 = 72,273.60 : x
  2. Step 2: Convert to fraction form
    142,410.69/213,484.77 = 72,273.60/x
  3. Step 3: Cross multiply
    142,410.69x = 213,484.77 × 72,273.60
  4. Step 4: Simplify right side
    142,410.69x = 15,429,312,873.07
  5. Step 5: Solve for x
    x = 15,429,312,873.07/142,410.69
  6. Step 6: Final answer
    x = 108,343.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.