Home / 218,897.10-328,345.65-61,125.30

Finding the Fourth Proportional to 218,897.10, 328,345.65 and 61,125.30

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Solution

The fourth proportional to 218,897.10, 328,345.65 and 61,125.30 is: 91,687.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,897.10 : 328,345.65 = 61,125.30 : x
  2. Step 2: Convert to fraction form
    218,897.10/328,345.65 = 61,125.30/x
  3. Step 3: Cross multiply
    218,897.10x = 328,345.65 × 61,125.30
  4. Step 4: Simplify right side
    218,897.10x = 20,070,226,359.95
  5. Step 5: Solve for x
    x = 20,070,226,359.95/218,897.10
  6. Step 6: Final answer
    x = 91,687.95

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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.