Home / 130,510.29-180,088.15-79,504.52

Finding the Fourth Proportional to 130,510.29, 180,088.15 and 79,504.52

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Solution

The fourth proportional to 130,510.29, 180,088.15 and 79,504.52 is: 109,706.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,510.29 : 180,088.15 = 79,504.52 : x
  2. Step 2: Convert to fraction form
    130,510.29/180,088.15 = 79,504.52/x
  3. Step 3: Cross multiply
    130,510.29x = 180,088.15 × 79,504.52
  4. Step 4: Simplify right side
    130,510.29x = 14,317,821,923.44
  5. Step 5: Solve for x
    x = 14,317,821,923.44/130,510.29
  6. Step 6: Final answer
    x = 109,706.46

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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.