Home / 145,187.02-217,781.64-40,011.76

Finding the Fourth Proportional to 145,187.02, 217,781.64 and 40,011.76

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Solution

The fourth proportional to 145,187.02, 217,781.64 and 40,011.76 is: 60,017.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,187.02 : 217,781.64 = 40,011.76 : x
  2. Step 2: Convert to fraction form
    145,187.02/217,781.64 = 40,011.76/x
  3. Step 3: Cross multiply
    145,187.02x = 217,781.64 × 40,011.76
  4. Step 4: Simplify right side
    145,187.02x = 8,713,826,712.09
  5. Step 5: Solve for x
    x = 8,713,826,712.09/145,187.02
  6. Step 6: Final answer
    x = 60,017.95

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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.