Home / 118,245.84-163,177.72-72,290.13

Finding the Fourth Proportional to 118,245.84, 163,177.72 and 72,290.13

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Solution

The fourth proportional to 118,245.84, 163,177.72 and 72,290.13 is: 99,759.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,245.84 : 163,177.72 = 72,290.13 : x
  2. Step 2: Convert to fraction form
    118,245.84/163,177.72 = 72,290.13/x
  3. Step 3: Cross multiply
    118,245.84x = 163,177.72 × 72,290.13
  4. Step 4: Simplify right side
    118,245.84x = 11,796,139,123.77
  5. Step 5: Solve for x
    x = 11,796,139,123.77/118,245.84
  6. Step 6: Final answer
    x = 99,759.45

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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.