Home / 131,720.18-197,579.45-42,973.74

Finding the Fourth Proportional to 131,720.18, 197,579.45 and 42,973.74

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Solution

The fourth proportional to 131,720.18, 197,579.45 and 42,973.74 is: 64,460.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,720.18 : 197,579.45 = 42,973.74 : x
  2. Step 2: Convert to fraction form
    131,720.18/197,579.45 = 42,973.74/x
  3. Step 3: Cross multiply
    131,720.18x = 197,579.45 × 42,973.74
  4. Step 4: Simplify right side
    131,720.18x = 8,490,728,021.08
  5. Step 5: Solve for x
    x = 8,490,728,021.08/131,720.18
  6. Step 6: Final answer
    x = 64,460.35

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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.