Home / 130,828.64-196,118.34-42,019.85

Finding the Fourth Proportional to 130,828.64, 196,118.34 and 42,019.85

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Solution

The fourth proportional to 130,828.64, 196,118.34 and 42,019.85 is: 62,989.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,828.64 : 196,118.34 = 42,019.85 : x
  2. Step 2: Convert to fraction form
    130,828.64/196,118.34 = 42,019.85/x
  3. Step 3: Cross multiply
    130,828.64x = 196,118.34 × 42,019.85
  4. Step 4: Simplify right side
    130,828.64x = 8,240,862,248.46
  5. Step 5: Solve for x
    x = 8,240,862,248.46/130,828.64
  6. Step 6: Final answer
    x = 62,989.74

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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.