Home / 130,763.79-196,138.76-42,010.40

Finding the Fourth Proportional to 130,763.79, 196,138.76 and 42,010.40

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Solution

The fourth proportional to 130,763.79, 196,138.76 and 42,010.40 is: 63,013.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,763.79 : 196,138.76 = 42,010.40 : x
  2. Step 2: Convert to fraction form
    130,763.79/196,138.76 = 42,010.40/x
  3. Step 3: Cross multiply
    130,763.79x = 196,138.76 × 42,010.40
  4. Step 4: Simplify right side
    130,763.79x = 8,239,866,572.36
  5. Step 5: Solve for x
    x = 8,239,866,572.36/130,763.79
  6. Step 6: Final answer
    x = 63,013.37

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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.