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Finding the Fourth Proportional to 130,062.58, 179,482.58 and 72,702.01

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Solution

The fourth proportional to 130,062.58, 179,482.58 and 72,702.01 is: 100,326.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,062.58 : 179,482.58 = 72,702.01 : x
  2. Step 2: Convert to fraction form
    130,062.58/179,482.58 = 72,702.01/x
  3. Step 3: Cross multiply
    130,062.58x = 179,482.58 × 72,702.01
  4. Step 4: Simplify right side
    130,062.58x = 13,048,743,858.82
  5. Step 5: Solve for x
    x = 13,048,743,858.82/130,062.58
  6. Step 6: Final answer
    x = 100,326.66

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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.