Home / 129,973.10-179,362.89-70,357.10

Finding the Fourth Proportional to 129,973.10, 179,362.89 and 70,357.10

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Solution

The fourth proportional to 129,973.10, 179,362.89 and 70,357.10 is: 97,092.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,973.10 : 179,362.89 = 70,357.10 : x
  2. Step 2: Convert to fraction form
    129,973.10/179,362.89 = 70,357.10/x
  3. Step 3: Cross multiply
    129,973.10x = 179,362.89 × 70,357.10
  4. Step 4: Simplify right side
    129,973.10x = 12,619,451,539.42
  5. Step 5: Solve for x
    x = 12,619,451,539.42/129,973.10
  6. Step 6: Final answer
    x = 97,092.80

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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.