Home / 211,030.48-316,443.66-77,973.40

Finding the Fourth Proportional to 211,030.48, 316,443.66 and 77,973.40

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Solution

The fourth proportional to 211,030.48, 316,443.66 and 77,973.40 is: 116,922.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,030.48 : 316,443.66 = 77,973.40 : x
  2. Step 2: Convert to fraction form
    211,030.48/316,443.66 = 77,973.40/x
  3. Step 3: Cross multiply
    211,030.48x = 316,443.66 × 77,973.40
  4. Step 4: Simplify right side
    211,030.48x = 24,674,188,078.64
  5. Step 5: Solve for x
    x = 24,674,188,078.64/211,030.48
  6. Step 6: Final answer
    x = 116,922.39

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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.