Home / 126,762.77-175,051.17-81,519.33

Finding the Fourth Proportional to 126,762.77, 175,051.17 and 81,519.33

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Solution

The fourth proportional to 126,762.77, 175,051.17 and 81,519.33 is: 112,572.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,762.77 : 175,051.17 = 81,519.33 : x
  2. Step 2: Convert to fraction form
    126,762.77/175,051.17 = 81,519.33/x
  3. Step 3: Cross multiply
    126,762.77x = 175,051.17 × 81,519.33
  4. Step 4: Simplify right side
    126,762.77x = 14,270,054,094.12
  5. Step 5: Solve for x
    x = 14,270,054,094.12/126,762.77
  6. Step 6: Final answer
    x = 112,572.91

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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.