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Finding the Fourth Proportional to 130,062.83, 179,486.08 and 72,702.14

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Solution

The fourth proportional to 130,062.83, 179,486.08 and 72,702.14 is: 100,328.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,062.83 : 179,486.08 = 72,702.14 : x
  2. Step 2: Convert to fraction form
    130,062.83/179,486.08 = 72,702.14/x
  3. Step 3: Cross multiply
    130,062.83x = 179,486.08 × 72,702.14
  4. Step 4: Simplify right side
    130,062.83x = 13,049,021,037.03
  5. Step 5: Solve for x
    x = 13,049,021,037.03/130,062.83
  6. Step 6: Final answer
    x = 100,328.60

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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.