Home / 111,712.98-154,166.88-60,729.15

Finding the Fourth Proportional to 111,712.98, 154,166.88 and 60,729.15

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Solution

The fourth proportional to 111,712.98, 154,166.88 and 60,729.15 is: 83,807.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,712.98 : 154,166.88 = 60,729.15 : x
  2. Step 2: Convert to fraction form
    111,712.98/154,166.88 = 60,729.15/x
  3. Step 3: Cross multiply
    111,712.98x = 154,166.88 × 60,729.15
  4. Step 4: Simplify right side
    111,712.98x = 9,362,423,580.55
  5. Step 5: Solve for x
    x = 9,362,423,580.55/111,712.98
  6. Step 6: Final answer
    x = 83,807.84

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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.