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Finding the Fourth Proportional to 130,364.21, 179,902.59 and 70,748.21

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Solution

The fourth proportional to 130,364.21, 179,902.59 and 70,748.21 is: 97,632.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,364.21 : 179,902.59 = 70,748.21 : x
  2. Step 2: Convert to fraction form
    130,364.21/179,902.59 = 70,748.21/x
  3. Step 3: Cross multiply
    130,364.21x = 179,902.59 × 70,748.21
  4. Step 4: Simplify right side
    130,364.21x = 12,727,785,317.35
  5. Step 5: Solve for x
    x = 12,727,785,317.35/130,364.21
  6. Step 6: Final answer
    x = 97,632.52

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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.