Home / 130,141.36-195,080.80-98,911

Finding the Fourth Proportional to 130,141.36, 195,080.80 and 98,911

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Solution

The fourth proportional to 130,141.36, 195,080.80 and 98,911 is: 148,266.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,141.36 : 195,080.80 = 98,911 : x
  2. Step 2: Convert to fraction form
    130,141.36/195,080.80 = 98,911/x
  3. Step 3: Cross multiply
    130,141.36x = 195,080.80 × 98,911
  4. Step 4: Simplify right side
    130,141.36x = 19,295,637,008.80
  5. Step 5: Solve for x
    x = 19,295,637,008.80/130,141.36
  6. Step 6: Final answer
    x = 148,266.75

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.