Home / 211,155.63-316,748.23-84,795.87

Finding the Fourth Proportional to 211,155.63, 316,748.23 and 84,795.87

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Solution

The fourth proportional to 211,155.63, 316,748.23 and 84,795.87 is: 127,199.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,155.63 : 316,748.23 = 84,795.87 : x
  2. Step 2: Convert to fraction form
    211,155.63/316,748.23 = 84,795.87/x
  3. Step 3: Cross multiply
    211,155.63x = 316,748.23 × 84,795.87
  4. Step 4: Simplify right side
    211,155.63x = 26,858,941,521.82
  5. Step 5: Solve for x
    x = 26,858,941,521.82/211,155.63
  6. Step 6: Final answer
    x = 127,199.74

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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.