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Finding the Fourth Proportional to 130,362.88, 179,900.80 and 70,746.88

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Solution

The fourth proportional to 130,362.88, 179,900.80 and 70,746.88 is: 97,630.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,362.88 : 179,900.80 = 70,746.88 : x
  2. Step 2: Convert to fraction form
    130,362.88/179,900.80 = 70,746.88/x
  3. Step 3: Cross multiply
    130,362.88x = 179,900.80 × 70,746.88
  4. Step 4: Simplify right side
    130,362.88x = 12,727,420,309.50
  5. Step 5: Solve for x
    x = 12,727,420,309.50/130,362.88
  6. Step 6: Final answer
    x = 97,630.71

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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.