Home / 158,172.95-218,278.07-85,575.60

Finding the Fourth Proportional to 158,172.95, 218,278.07 and 85,575.60

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Solution

The fourth proportional to 158,172.95, 218,278.07 and 85,575.60 is: 118,094.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,172.95 : 218,278.07 = 85,575.60 : x
  2. Step 2: Convert to fraction form
    158,172.95/218,278.07 = 85,575.60/x
  3. Step 3: Cross multiply
    158,172.95x = 218,278.07 × 85,575.60
  4. Step 4: Simplify right side
    158,172.95x = 18,679,277,566.73
  5. Step 5: Solve for x
    x = 18,679,277,566.73/158,172.95
  6. Step 6: Final answer
    x = 118,094.01

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1.5x scale

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.