Home / 130,173.75-179,639.90-70,557.75

Finding the Fourth Proportional to 130,173.75, 179,639.90 and 70,557.75

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Solution

The fourth proportional to 130,173.75, 179,639.90 and 70,557.75 is: 97,369.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,173.75 : 179,639.90 = 70,557.75 : x
  2. Step 2: Convert to fraction form
    130,173.75/179,639.90 = 70,557.75/x
  3. Step 3: Cross multiply
    130,173.75x = 179,639.90 × 70,557.75
  4. Step 4: Simplify right side
    130,173.75x = 12,674,987,154.23
  5. Step 5: Solve for x
    x = 12,674,987,154.23/130,173.75
  6. Step 6: Final answer
    x = 97,369.76

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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.