Home / 156,988.72-216,637.84-89,010.26

Finding the Fourth Proportional to 156,988.72, 216,637.84 and 89,010.26

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Solution

The fourth proportional to 156,988.72, 216,637.84 and 89,010.26 is: 122,830.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,988.72 : 216,637.84 = 89,010.26 : x
  2. Step 2: Convert to fraction form
    156,988.72/216,637.84 = 89,010.26/x
  3. Step 3: Cross multiply
    156,988.72x = 216,637.84 × 89,010.26
  4. Step 4: Simplify right side
    156,988.72x = 19,282,990,464.24
  5. Step 5: Solve for x
    x = 19,282,990,464.24/156,988.72
  6. Step 6: Final answer
    x = 122,830.42

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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.