Home / 130,824.99-180,562.05-77,106.87

Finding the Fourth Proportional to 130,824.99, 180,562.05 and 77,106.87

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Solution

The fourth proportional to 130,824.99, 180,562.05 and 77,106.87 is: 106,421.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,824.99 : 180,562.05 = 77,106.87 : x
  2. Step 2: Convert to fraction form
    130,824.99/180,562.05 = 77,106.87/x
  3. Step 3: Cross multiply
    130,824.99x = 180,562.05 × 77,106.87
  4. Step 4: Simplify right side
    130,824.99x = 13,922,574,516.28
  5. Step 5: Solve for x
    x = 13,922,574,516.28/130,824.99
  6. Step 6: Final answer
    x = 106,421.37

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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.