Home / 103,330.56-154,756.48-88,172.80

Finding the Fourth Proportional to 103,330.56, 154,756.48 and 88,172.80

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Solution

The fourth proportional to 103,330.56, 154,756.48 and 88,172.80 is: 132,054.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,330.56 : 154,756.48 = 88,172.80 : x
  2. Step 2: Convert to fraction form
    103,330.56/154,756.48 = 88,172.80/x
  3. Step 3: Cross multiply
    103,330.56x = 154,756.48 × 88,172.80
  4. Step 4: Simplify right side
    103,330.56x = 13,645,312,159.74
  5. Step 5: Solve for x
    x = 13,645,312,159.74/103,330.56
  6. Step 6: Final answer
    x = 132,054.95

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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.