Home / 211,026.48-316,437.66-77,969.40

Finding the Fourth Proportional to 211,026.48, 316,437.66 and 77,969.40

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Solution

The fourth proportional to 211,026.48, 316,437.66 and 77,969.40 is: 116,916.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,026.48 : 316,437.66 = 77,969.40 : x
  2. Step 2: Convert to fraction form
    211,026.48/316,437.66 = 77,969.40/x
  3. Step 3: Cross multiply
    211,026.48x = 316,437.66 × 77,969.40
  4. Step 4: Simplify right side
    211,026.48x = 24,672,454,487.60
  5. Step 5: Solve for x
    x = 24,672,454,487.60/211,026.48
  6. Step 6: Final answer
    x = 116,916.39

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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.