Home / 211,564.80-291,962.40-116,069.76

Finding the Fourth Proportional to 211,564.80, 291,962.40 and 116,069.76

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Solution

The fourth proportional to 211,564.80, 291,962.40 and 116,069.76 is: 160,177.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,564.80 : 291,962.40 = 116,069.76 : x
  2. Step 2: Convert to fraction form
    211,564.80/291,962.40 = 116,069.76/x
  3. Step 3: Cross multiply
    211,564.80x = 291,962.40 × 116,069.76
  4. Step 4: Simplify right side
    211,564.80x = 33,888,005,697.02
  5. Step 5: Solve for x
    x = 33,888,005,697.02/211,564.80
  6. Step 6: Final answer
    x = 160,177.90

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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.