Home / 210,520.96-316,006.14-90,637.24

Finding the Fourth Proportional to 210,520.96, 316,006.14 and 90,637.24

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Solution

The fourth proportional to 210,520.96, 316,006.14 and 90,637.24 is: 136,052.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,520.96 : 316,006.14 = 90,637.24 : x
  2. Step 2: Convert to fraction form
    210,520.96/316,006.14 = 90,637.24/x
  3. Step 3: Cross multiply
    210,520.96x = 316,006.14 × 90,637.24
  4. Step 4: Simplify right side
    210,520.96x = 28,641,924,352.65
  5. Step 5: Solve for x
    x = 28,641,924,352.65/210,520.96
  6. Step 6: Final answer
    x = 136,052.60

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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.