Home / 145,849.88-201,271.65-81,318.35

Finding the Fourth Proportional to 145,849.88, 201,271.65 and 81,318.35

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Solution

The fourth proportional to 145,849.88, 201,271.65 and 81,318.35 is: 112,218.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,849.88 : 201,271.65 = 81,318.35 : x
  2. Step 2: Convert to fraction form
    145,849.88/201,271.65 = 81,318.35/x
  3. Step 3: Cross multiply
    145,849.88x = 201,271.65 × 81,318.35
  4. Step 4: Simplify right side
    145,849.88x = 16,367,078,678.01
  5. Step 5: Solve for x
    x = 16,367,078,678.01/145,849.88
  6. Step 6: Final answer
    x = 112,218.66

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.