Home / 145,714.24-201,095.94-81,187.72

Finding the Fourth Proportional to 145,714.24, 201,095.94 and 81,187.72

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Solution

The fourth proportional to 145,714.24, 201,095.94 and 81,187.72 is: 112,044.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,714.24 : 201,095.94 = 81,187.72 : x
  2. Step 2: Convert to fraction form
    145,714.24/201,095.94 = 81,187.72/x
  3. Step 3: Cross multiply
    145,714.24x = 201,095.94 × 81,187.72
  4. Step 4: Simplify right side
    145,714.24x = 16,326,520,869.86
  5. Step 5: Solve for x
    x = 16,326,520,869.86/145,714.24
  6. Step 6: Final answer
    x = 112,044.79

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1.5x scale

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.