Home / 130,164.04-179,561.64-87,648.76

Finding the Fourth Proportional to 130,164.04, 179,561.64 and 87,648.76

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Solution

The fourth proportional to 130,164.04, 179,561.64 and 87,648.76 is: 120,911.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,164.04 : 179,561.64 = 87,648.76 : x
  2. Step 2: Convert to fraction form
    130,164.04/179,561.64 = 87,648.76/x
  3. Step 3: Cross multiply
    130,164.04x = 179,561.64 × 87,648.76
  4. Step 4: Simplify right side
    130,164.04x = 15,738,355,089.57
  5. Step 5: Solve for x
    x = 15,738,355,089.57/130,164.04
  6. Step 6: Final answer
    x = 120,911.70

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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.