Home / 137,041.40-205,562.10-129,438.20

Finding the Fourth Proportional to 137,041.40, 205,562.10 and 129,438.20

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Solution

The fourth proportional to 137,041.40, 205,562.10 and 129,438.20 is: 194,157.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,041.40 : 205,562.10 = 129,438.20 : x
  2. Step 2: Convert to fraction form
    137,041.40/205,562.10 = 129,438.20/x
  3. Step 3: Cross multiply
    137,041.40x = 205,562.10 × 129,438.20
  4. Step 4: Simplify right side
    137,041.40x = 26,607,588,212.22
  5. Step 5: Solve for x
    x = 26,607,588,212.22/137,041.40
  6. Step 6: Final answer
    x = 194,157.30

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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.