Home / 142,403.19-213,637.18-75,808.23

Finding the Fourth Proportional to 142,403.19, 213,637.18 and 75,808.23

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Solution

The fourth proportional to 142,403.19, 213,637.18 and 75,808.23 is: 113,729.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,403.19 : 213,637.18 = 75,808.23 : x
  2. Step 2: Convert to fraction form
    142,403.19/213,637.18 = 75,808.23/x
  3. Step 3: Cross multiply
    142,403.19x = 213,637.18 × 75,808.23
  4. Step 4: Simplify right side
    142,403.19x = 16,195,456,477.99
  5. Step 5: Solve for x
    x = 16,195,456,477.99/142,403.19
  6. Step 6: Final answer
    x = 113,729.59

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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.