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Finding the Fourth Proportional to 130,016.58, 179,421.90 and 70,400.58

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Solution

The fourth proportional to 130,016.58, 179,421.90 and 70,400.58 is: 97,152.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,016.58 : 179,421.90 = 70,400.58 : x
  2. Step 2: Convert to fraction form
    130,016.58/179,421.90 = 70,400.58/x
  3. Step 3: Cross multiply
    130,016.58x = 179,421.90 × 70,400.58
  4. Step 4: Simplify right side
    130,016.58x = 12,631,405,824.70
  5. Step 5: Solve for x
    x = 12,631,405,824.70/130,016.58
  6. Step 6: Final answer
    x = 97,152.27

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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.