Home / 126,085.99-174,009.10-72,381.39

Finding the Fourth Proportional to 126,085.99, 174,009.10 and 72,381.39

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Solution

The fourth proportional to 126,085.99, 174,009.10 and 72,381.39 is: 99,892.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,085.99 : 174,009.10 = 72,381.39 : x
  2. Step 2: Convert to fraction form
    126,085.99/174,009.10 = 72,381.39/x
  3. Step 3: Cross multiply
    126,085.99x = 174,009.10 × 72,381.39
  4. Step 4: Simplify right side
    126,085.99x = 12,595,020,530.65
  5. Step 5: Solve for x
    x = 12,595,020,530.65/126,085.99
  6. Step 6: Final answer
    x = 99,892.31

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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.