Home / 142,689.03-196,909.27-79,026.67

Finding the Fourth Proportional to 142,689.03, 196,909.27 and 79,026.67

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Solution

The fourth proportional to 142,689.03, 196,909.27 and 79,026.67 is: 109,055.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,689.03 : 196,909.27 = 79,026.67 : x
  2. Step 2: Convert to fraction form
    142,689.03/196,909.27 = 79,026.67/x
  3. Step 3: Cross multiply
    142,689.03x = 196,909.27 × 79,026.67
  4. Step 4: Simplify right side
    142,689.03x = 15,561,083,900.23
  5. Step 5: Solve for x
    x = 15,561,083,900.23/142,689.03
  6. Step 6: Final answer
    x = 109,055.92

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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.