Home / 137,430.72-207,205.62-136,577.76

Finding the Fourth Proportional to 137,430.72, 207,205.62 and 136,577.76

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Solution

The fourth proportional to 137,430.72, 207,205.62 and 136,577.76 is: 205,919.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,430.72 : 207,205.62 = 136,577.76 : x
  2. Step 2: Convert to fraction form
    137,430.72/207,205.62 = 136,577.76/x
  3. Step 3: Cross multiply
    137,430.72x = 207,205.62 × 136,577.76
  4. Step 4: Simplify right side
    137,430.72x = 28,299,679,439.01
  5. Step 5: Solve for x
    x = 28,299,679,439.01/137,430.72
  6. Step 6: Final answer
    x = 205,919.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.