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Finding the Fourth Proportional to 130,359.95, 179,896.74 and 70,743.95

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Solution

The fourth proportional to 130,359.95, 179,896.74 and 70,743.95 is: 97,626.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,359.95 : 179,896.74 = 70,743.95 : x
  2. Step 2: Convert to fraction form
    130,359.95/179,896.74 = 70,743.95/x
  3. Step 3: Cross multiply
    130,359.95x = 179,896.74 × 70,743.95
  4. Step 4: Simplify right side
    130,359.95x = 12,726,605,979.72
  5. Step 5: Solve for x
    x = 12,726,605,979.72/130,359.95
  6. Step 6: Final answer
    x = 97,626.66

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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.