Home / 155,457.10-214,530.78-88,389.10

Finding the Fourth Proportional to 155,457.10, 214,530.78 and 88,389.10

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Solution

The fourth proportional to 155,457.10, 214,530.78 and 88,389.10 is: 121,976.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,457.10 : 214,530.78 = 88,389.10 : x
  2. Step 2: Convert to fraction form
    155,457.10/214,530.78 = 88,389.10/x
  3. Step 3: Cross multiply
    155,457.10x = 214,530.78 × 88,389.10
  4. Step 4: Simplify right side
    155,457.10x = 18,962,182,566.50
  5. Step 5: Solve for x
    x = 18,962,182,566.50/155,457.10
  6. Step 6: Final answer
    x = 121,976.95

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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.