Home / 211,642.86-292,080.28-139,898.46

Finding the Fourth Proportional to 211,642.86, 292,080.28 and 139,898.46

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Solution

The fourth proportional to 211,642.86, 292,080.28 and 139,898.46 is: 193,068.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,642.86 : 292,080.28 = 139,898.46 : x
  2. Step 2: Convert to fraction form
    211,642.86/292,080.28 = 139,898.46/x
  3. Step 3: Cross multiply
    211,642.86x = 292,080.28 × 139,898.46
  4. Step 4: Simplify right side
    211,642.86x = 40,861,581,368.37
  5. Step 5: Solve for x
    x = 40,861,581,368.37/211,642.86
  6. Step 6: Final answer
    x = 193,068.56

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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.