Home / 130,898.79-180,588.36-75,697.92

Finding the Fourth Proportional to 130,898.79, 180,588.36 and 75,697.92

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Solution

The fourth proportional to 130,898.79, 180,588.36 and 75,697.92 is: 104,433.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,898.79 : 180,588.36 = 75,697.92 : x
  2. Step 2: Convert to fraction form
    130,898.79/180,588.36 = 75,697.92/x
  3. Step 3: Cross multiply
    130,898.79x = 180,588.36 × 75,697.92
  4. Step 4: Simplify right side
    130,898.79x = 13,670,163,228.21
  5. Step 5: Solve for x
    x = 13,670,163,228.21/130,898.79
  6. Step 6: Final answer
    x = 104,433.08

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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.