Home / 131,731.32-197,628.48-42,985.02

Finding the Fourth Proportional to 131,731.32, 197,628.48 and 42,985.02

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Solution

The fourth proportional to 131,731.32, 197,628.48 and 42,985.02 is: 64,487.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,731.32 : 197,628.48 = 42,985.02 : x
  2. Step 2: Convert to fraction form
    131,731.32/197,628.48 = 42,985.02/x
  3. Step 3: Cross multiply
    131,731.32x = 197,628.48 × 42,985.02
  4. Step 4: Simplify right side
    131,731.32x = 8,495,064,165.37
  5. Step 5: Solve for x
    x = 8,495,064,165.37/131,731.32
  6. Step 6: Final answer
    x = 64,487.81

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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.