Home / 210,890.02-316,338.68-77,701.72

Finding the Fourth Proportional to 210,890.02, 316,338.68 and 77,701.72

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Solution

The fourth proportional to 210,890.02, 316,338.68 and 77,701.72 is: 116,553.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,890.02 : 316,338.68 = 77,701.72 : x
  2. Step 2: Convert to fraction form
    210,890.02/316,338.68 = 77,701.72/x
  3. Step 3: Cross multiply
    210,890.02x = 316,338.68 × 77,701.72
  4. Step 4: Simplify right side
    210,890.02x = 24,580,059,538.53
  5. Step 5: Solve for x
    x = 24,580,059,538.53/210,890.02
  6. Step 6: Final answer
    x = 116,553.92

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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.