Home / 131,345.42-197,046.95-42,607.89

Finding the Fourth Proportional to 131,345.42, 197,046.95 and 42,607.89

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Solution

The fourth proportional to 131,345.42, 197,046.95 and 42,607.89 is: 63,921.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,345.42 : 197,046.95 = 42,607.89 : x
  2. Step 2: Convert to fraction form
    131,345.42/197,046.95 = 42,607.89/x
  3. Step 3: Cross multiply
    131,345.42x = 197,046.95 × 42,607.89
  4. Step 4: Simplify right side
    131,345.42x = 8,395,754,557.40
  5. Step 5: Solve for x
    x = 8,395,754,557.40/131,345.42
  6. Step 6: Final answer
    x = 63,921.18

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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.