Home / 130,323.08-179,830.68-72,965.56

Finding the Fourth Proportional to 130,323.08, 179,830.68 and 72,965.56

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Solution

The fourth proportional to 130,323.08, 179,830.68 and 72,965.56 is: 100,683.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,323.08 : 179,830.68 = 72,965.56 : x
  2. Step 2: Convert to fraction form
    130,323.08/179,830.68 = 72,965.56/x
  3. Step 3: Cross multiply
    130,323.08x = 179,830.68 × 72,965.56
  4. Step 4: Simplify right side
    130,323.08x = 13,121,446,271.38
  5. Step 5: Solve for x
    x = 13,121,446,271.38/130,323.08
  6. Step 6: Final answer
    x = 100,683.98

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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.