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Finding the Fourth Proportional to 130,236.76, 179,727.80 and 70,620.76

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Solution

The fourth proportional to 130,236.76, 179,727.80 and 70,620.76 is: 97,457.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,236.76 : 179,727.80 = 70,620.76 : x
  2. Step 2: Convert to fraction form
    130,236.76/179,727.80 = 70,620.76/x
  3. Step 3: Cross multiply
    130,236.76x = 179,727.80 × 70,620.76
  4. Step 4: Simplify right side
    130,236.76x = 12,692,513,829.13
  5. Step 5: Solve for x
    x = 12,692,513,829.13/130,236.76
  6. Step 6: Final answer
    x = 97,457.23

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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.