Home / 213,089.90-319,551.74-79,897.58

Finding the Fourth Proportional to 213,089.90, 319,551.74 and 79,897.58

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Solution

The fourth proportional to 213,089.90, 319,551.74 and 79,897.58 is: 119,815.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,089.90 : 319,551.74 = 79,897.58 : x
  2. Step 2: Convert to fraction form
    213,089.90/319,551.74 = 79,897.58/x
  3. Step 3: Cross multiply
    213,089.90x = 319,551.74 × 79,897.58
  4. Step 4: Simplify right side
    213,089.90x = 25,531,409,312.77
  5. Step 5: Solve for x
    x = 25,531,409,312.77/213,089.90
  6. Step 6: Final answer
    x = 119,815.20

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1.5x scale

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.