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Finding the Fourth Proportional to 145,159.84, 217,655.01 and 56,309.52

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Solution

The fourth proportional to 145,159.84, 217,655.01 and 56,309.52 is: 84,431.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,159.84 : 217,655.01 = 56,309.52 : x
  2. Step 2: Convert to fraction form
    145,159.84/217,655.01 = 56,309.52/x
  3. Step 3: Cross multiply
    145,159.84x = 217,655.01 × 56,309.52
  4. Step 4: Simplify right side
    145,159.84x = 12,256,049,138.70
  5. Step 5: Solve for x
    x = 12,256,049,138.70/145,159.84
  6. Step 6: Final answer
    x = 84,431.41

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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.